Subj : Southern Ontario Weather To : All From : Northern Realms Date : Mon May 20 2024 15:35:00 FPCN11 CWTO 201930 Forecasts for Southern Ontario and the National Capital Region issued by Environment Canada at 3:30 p.m. EDT Monday 20 May 2024 for tonight Tuesday and Tuesday night. The next scheduled forecast will be issued at 5:00 a.m. EDT Tuesday. City of Toronto. Tonight..Partly cloudy. 30 percent chance of showers overnight with risk of a thunderstorm. Low 19. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the morning and late in the afternoon. Risk of a thunderstorm. High 27. Humidex 35. UV index 8 or very high. Tuesday night..Partly cloudy with 30 percent chance of showers early in the evening. Otherwise clear. Risk of a thunderstorm early in the evening. Low 20. Windsor - Leamington - Essex County. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind south 30 km/h gusting to 50 becoming light late this evening. Low 18. Tuesday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 40 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. Wind becoming south 30 km/h in the afternoon. High 31. Humidex 37. UV index 9 or very high. Tuesday night..Partly cloudy with 40 percent chance of showers. Risk of a thunderstorm. Wind south 20 km/h gusting to 40. Low 21. Chatham-Kent - Rondeau Park. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind southwest 30 km/h becoming light after midnight. Low 18. Tuesday..A mix of sun and cloud. 40 percent chance of showers late in the afternoon with risk of a thunderstorm. Wind becoming southwest 20 km/h late in the morning. High 31. Humidex 37. UV index 9 or very high. Tuesday night..Partly cloudy with 40 percent chance of showers. Risk of a thunderstorm. Wind becoming south 20 km/h in the evening. Low 21. Sarnia - Petrolia - Western Lambton County. Tonight..A few showers ending before morning then partly cloudy. Risk of a thunderstorm. Wind northeast 30 km/h becoming south 20 early this evening then light late this evening. Low 18. Tuesday..A mix of sun and cloud. 60 percent chance of showers in the afternoon with risk of a thunderstorm. High 31. Humidex 37. UV index 8 or very high. Tuesday night..Partly cloudy. 60 percent chance of showers early in the evening with risk of a thunderstorm. Wind becoming south 20 km/h in the evening. Low 22. Watford - Pinery Park - Eastern Lambton County. Tonight..A few showers ending before morning then partly cloudy. Risk of a thunderstorm. Wind southwest 20 km/h becoming light this evening. Low 19. Tuesday..A mix of sun and cloud. 60 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 31. Humidex 37. UV index 8 or very high. Tuesday night..Partly cloudy with 60 percent chance of showers early in the evening. Otherwise clear. Risk of a thunderstorm early in the evening. Wind southwest 20 km/h becoming light in the evening. Low 23. Rodney - Shedden - Western Elgin County. Tonight..Partly cloudy with 30 percent chance of showers. Risk of a thunderstorm. Wind becoming south 20 km/h gusting to 40 late this evening then light after midnight. Low 18. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the morning and late in the afternoon. Risk of a thunderstorm. Wind southwest 20 km/h becoming light in the afternoon. High 29. Humidex 33. UV index 9 or very high. Tuesday night..Partly cloudy with 30 percent chance of showers early in the evening then clear. Risk of a thunderstorm early in the evening. Low 20. St. Thomas - Aylmer - Eastern Elgin County. Tonight..Partly cloudy with 30 percent chance of showers. Risk of a thunderstorm. Low 18. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the morning and late in the afternoon. Risk of a thunderstorm. High 29. Humidex 33. UV index 9 or very high. Tuesday night..Partly cloudy with 30 percent chance of showers early in the evening then clear. Risk of a thunderstorm early in the evening. Low 20. Strathroy - Komoka - Western Middlesex County. Tonight..A few showers ending before morning then partly cloudy. Risk of a thunderstorm. Wind north 20 km/h becoming light early this evening. Low 18. Tuesday..A mix of sun and cloud. 60 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming south 20 km/h in the afternoon. High 31. Humidex 37. UV index 9 or very high. Tuesday night..Partly cloudy. 60 percent chance of showers early in the evening with risk of a thunderstorm. Wind south 20 km/h becoming light in the evening. Low 21. London - Parkhill - Eastern Middlesex County. Tonight..A few showers ending before morning then partly cloudy. Risk of a thunderstorm. Wind northwest 20 km/h becoming south 20 this evening. Low 18. Tuesday..A mix of sun and cloud. 60 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 31. Humidex 37. UV index 9 or very high. Tuesday night..Partly cloudy with 60 percent chance of showers early in the evening. Otherwise clear. Risk of a thunderstorm early in the evening. Low 21. Simcoe - Delhi - Norfolk. Tonight..A few clouds. Increasing cloudiness late this evening then 30 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind southwest 20 km/h becoming light early this evening. Low 17. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the morning and late in the afternoon. Risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 27. Humidex 32. UV index 8 or very high. Tuesday night..Partly cloudy. 30 percent chance of showers early in the evening with risk of a thunderstorm. Wind south 20 km/h becoming west 20 after midnight. Low 20. Dunnville - Caledonia - Haldimand. Tonight..A few clouds. Increasing cloudiness late this evening. Wind south 20 km/h becoming light early this evening. Low 18. Tuesday..Mainly sunny. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 27. Humidex 32. UV index 8 or very high. Tuesday night..Clear. Wind south 20 km/h becoming light in the evening. Low 19 with temperature rising to 22 by morning. Woodstock - Tillsonburg - Oxford County. Tonight..Partly cloudy with 60 percent chance of showers. Risk of a thunderstorm. Wind southwest 20 km/h becoming light early this evening. Low 18. Tuesday..A mix of sun and cloud. 60 percent chance of showers early in the morning. 30 percent chance of showers late in the afternoon. Risk of a thunderstorm. Wind becoming west 20 km/h gusting to 40 in the morning. High 28. Humidex 33. UV index 8 or very high. Tuesday night..Clear in the evening and after midnight then partly cloudy with 40 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind south 20 km/h. Low 21. Brantford - County of Brant. Tonight..Partly cloudy. 30 percent chance of showers overnight with risk of a thunderstorm. Wind southwest 20 km/h becoming light early this evening. Low 18. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the morning and late in the afternoon. Risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 28. Humidex 33. UV index 8 or very high. Tuesday night..Partly cloudy with 30 percent chance of showers early in the evening then clear. Risk of a thunderstorm early in the evening. Low 21. Niagara Falls - Welland - Southern Niagara Region. Tonight..Clear. Becoming partly cloudy this evening. Low 19. Tuesday..Mainly sunny. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 23. Humidex 28. UV index 8 or very high. Tuesday night..Clear. Wind southwest 20 km/h becoming light in the evening. Temperature steady near 21. St. Catharines - Grimsby - Northern Niagara Region. Tonight..A few clouds. Wind southwest 20 km/h becoming northwest 20 early this evening. Low 19. Tuesday..Mainly sunny. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 26. Humidex 31. UV index 8 or very high. Tuesday night..Clear. Wind southwest 20 km/h gusting to 40 becoming light in the evening. Wind becoming southwest 20 before morning. Low 20. City of Hamilton. Tonight..Partly cloudy. 30 percent chance of showers overnight with risk of a thunderstorm. Wind southwest 20 km/h becoming light early this evening. Low 19. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the morning and late in the afternoon. Risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 28. Humidex 34. UV index 8 or very high. Tuesday night..Partly cloudy with 30 percent chance of showers early in the evening. Otherwise clear. Risk of a thunderstorm early in the evening. Low 20. Burlington - Oakville. Tonight..Partly cloudy. 30 percent chance of showers overnight with risk of a thunderstorm. Wind northwest 20 km/h becoming light this evening. Low 16. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the morning and late in the afternoon. Risk of a thunderstorm. Wind becoming west 20 km/h late in the afternoon. High 27. Humidex 33. UV index 8 or very high. Tuesday night..Partly cloudy with 30 percent chance of showers early in the evening. Otherwise clear. Risk of a thunderstorm early in the evening. Wind west 20 km/h becoming light in the evening. Low 18. Halton Hills - Milton. Tonight..Partly cloudy. 30 percent chance of showers overnight with risk of a thunderstorm. Low 18. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the morning and late in the afternoon. Risk of a thunderstorm. Wind becoming west 20 km/h gusting to 40 late in the morning. High 28. Humidex 34. UV index 8 or very high. Tuesday night..Partly cloudy with 30 percent chance of showers early in the evening. Otherwise clear. Risk of a thunderstorm early in the evening. Wind west 20 km/h becoming light in the evening. Low 20. Mississauga - Brampton. Tonight..Partly cloudy. 30 percent chance of showers overnight with risk of a thunderstorm. Low 18. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the morning and late in the afternoon. Risk of a thunderstorm. Wind becoming west 20 km/h gusting to 40 in the afternoon. High 28. Humidex 34. UV index 8 or very high. Tuesday night..Partly cloudy with 30 percent chance of showers early in the evening. Otherwise clear. Risk of a thunderstorm early in the evening. Wind west 20 km/h becoming light in the evening. Low 20. Caledon. Tonight..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Low 18. Tuesday..A mix of sun and cloud with 60 percent chance of showers and risk of a thunderstorm. Wind becoming west 30 km/h gusting to 50 in the morning. High 30. Humidex 36. UV index 8 or very high. Tuesday night..Partly cloudy with 40 percent chance of showers early in the evening. Otherwise clear. Risk of a thunderstorm early in the evening. Wind west 20 km/h becoming light in the evening. Low 20. Vaughan - Richmond Hill - Markham. Tonight..Partly cloudy. 30 percent chance of showers overnight with risk of a thunderstorm. Wind south 20 km/h becoming northwest 30 then light this evening. Low 17. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the morning and late in the afternoon. Risk of a thunderstorm. Wind becoming south 20 km/h late in the morning then west 30 gusting to 50. High 28. Humidex 36. UV index 8 or very high. Tuesday night..Partly cloudy. 30 percent chance of showers early in the evening with risk of a thunderstorm. Wind west 20 km/h becoming light in the evening. Low 19. Newmarket - Georgina - Northern York Region. Tonight..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming north 30 km/h gusting to 50 then light this evening. Low 17. Tuesday..A mix of sun and cloud with 60 percent chance of showers and risk of a thunderstorm. Wind becoming west 20 km/h gusting to 40 late in the morning. High 27. Humidex 35. UV index 8 or very high. Tuesday night..Partly cloudy with 40 percent chance of showers early in the evening. Otherwise clear. Risk of a thunderstorm early in the evening. Low 19. Pickering - Oshawa - Southern Durham Region. Tonight..Partly cloudy. Low 17. Tuesday..A mix of sun and cloud. Clearing late in the afternoon. High 28. Humidex 34. UV index 8 or very high. Tuesday night..Clear early in the evening then partly cloudy with 30 percent chance of showers overnight. Risk of a thunderstorm overnight. Low 17. Uxbridge - Beaverton - Northern Durham Region. Tonight..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Low 17. Tuesday..A mix of sun and cloud with 60 percent chance of showers and risk of a thunderstorm. Wind becoming west 20 km/h late in the morning. High 28. Humidex 34. UV index 8 or very high. Tuesday night..Partly cloudy with 40 percent chance of showers early in the evening. Otherwise clear. Risk of a thunderstorm early in the evening. Low 17. Goderich - Bluewater - Southern Huron County. Tonight..A few showers ending before morning then mainly cloudy. Risk of a thunderstorm. Wind southeast 30 km/h becoming light early this evening. Low 17. Tuesday..Mainly cloudy. 60 percent chance of showers in the afternoon with risk of a thunderstorm. High 29. Humidex 34. UV index 7 or high. Tuesday night..Partly cloudy. 60 percent chance of showers early in the evening with risk of a thunderstorm. Wind becoming south 30 km/h in the evening. Low 21. Wingham - Blyth - Northern Huron County. Tonight..A few showers ending before morning then cloudy. Risk of a thunderstorm. Wind southwest 20 km/h gusting to 40 becoming light early this evening. Wind becoming southwest 20 before morning. Low 17. Tuesday..Cloudy. Becoming a mix of sun and cloud late in the morning with 60 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. Wind west 20 km/h becoming light late in the morning. High 28. Humidex 33. UV index 8 or very high. Tuesday night..Partly cloudy. 60 percent chance of showers early in the evening with risk of a thunderstorm. Wind becoming east 20 km/h before morning. Low 21. Stratford - Mitchell - Southern Perth County. Tonight..A few showers ending before morning then mainly cloudy. Risk of a thunderstorm. Wind northwest 30 km/h becoming light early this evening. Low 17. Tuesday..A mix of sun and cloud. 60 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming west 20 km/h in the morning. High 29. Humidex 34. UV index 8 or very high. Tuesday night..Partly cloudy. 60 percent chance of showers early in the evening with risk of a thunderstorm. Wind south 20 km/h becoming light near midnight. Low 21. Listowel - Milverton - Northern Perth County. Tonight..A few showers ending before morning then mainly cloudy. Risk of a thunderstorm. Wind west 50 km/h gusting to 70 becoming light early this evening. Low 17. Tuesday..Cloudy. Becoming a mix of sun and cloud late in the morning with 60 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. Wind west 20 km/h. High 29. Humidex 34. UV index 8 or very high. Tuesday night..Partly cloudy. 60 percent chance of showers early in the evening with risk of a thunderstorm. Low 21. Kitchener - Cambridge - Region of Waterloo. Tonight..Partly cloudy with 60 percent chance of showers. Risk of a thunderstorm. Wind southwest 20 km/h becoming light early this evening. Low 17. Tuesday..A mix of sun and cloud. 60 percent chance of showers early in the morning. 30 percent chance of showers late in the afternoon. Risk of a thunderstorm. Wind becoming west 20 km/h in the morning. High 29. Humidex 35. UV index 8 or very high. Tuesday night..Clear in the evening and after midnight then partly cloudy with 40 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind west 20 km/h becoming light in the evening. Low 19. Guelph - Erin - Southern Wellington County. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind southwest 20 km/h becoming southeast 30 then light this evening. Low 17. Tuesday..A mix of sun and cloud with 60 percent chance of showers and risk of a thunderstorm. Wind becoming west 20 km/h gusting to 40 in the morning. High 29. Humidex 35. UV index 8 or very high. Tuesday night..Partly cloudy with 40 percent chance of showers early in the evening. Otherwise clear. Risk of a thunderstorm early in the evening. Wind west 20 km/h becoming light in the evening. Low 19. Mount Forest - Arthur - Northern Wellington County. Tonight..A few showers ending before morning then mainly cloudy. Risk of a thunderstorm. Wind southwest 20 km/h becoming southeast 30 then light this evening. Low 17. Tuesday..Cloudy. Becoming a mix of sun and cloud late in the morning with 60 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. Wind becoming southwest 20 km/h in the morning. High 29. Humidex 35. UV index 8 or very high. Tuesday night..Partly cloudy. 60 percent chance of showers early in the evening with risk of a thunderstorm. Low 19. Orangeville - Grand Valley - Southern Dufferin County. Tonight..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind northeast 20 km/h gusting to 40 becoming light this evening. Low 18. Tuesday..A mix of sun and cloud with 60 percent chance of showers and risk of a thunderstorm. Wind becoming west 30 km/h gusting to 50 in the morning. High 28. Humidex 31. UV index 8 or very high. Tuesday night..Partly cloudy with 40 percent chance of showers early in the evening. Otherwise clear. Risk of a thunderstorm early in the evening. Wind west 20 km/h becoming light in the evening. Low 21. Shelburne - Mansfield - Northern Dufferin County. Tonight..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind west 20 km/h gusting to 40 becoming southwest 40 gusting to 60 then light this evening. Low 18. Tuesday..A mix of sun and cloud with 60 percent chance of showers and risk of a thunderstorm. Wind becoming west 20 km/h gusting to 40 in the morning. High 28. Humidex 31. UV index 8 or very high. Tuesday night..Partly cloudy with 40 percent chance of showers early in the evening. Otherwise clear. Risk of a thunderstorm early in the evening. Wind west 20 km/h. Low 21. Innisfil - New Tecumseth - Angus. Tonight..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Low 15. Tuesday..A mix of sun and cloud with 60 percent chance of showers and risk of a thunderstorm. Wind becoming west 20 km/h late in the morning. High 27. Humidex 32. UV index 7 or high. Tuesday night..Partly cloudy with 40 percent chance of showers early in the evening. Otherwise clear. Risk of a thunderstorm early in the evening. Low 13. Saugeen Shores - Kincardine - Southern Bruce County. Tonight..Mainly cloudy with 40 percent chance of showers this evening. Showers beginning late this evening. Risk of a thunderstorm this evening and overnight. Wind southeast 20 km/h becoming southwest 20 after midnight. Low 15. Tuesday..Showers ending in the morning then cloudy. Risk of a thunderstorm early in the morning. Wind southwest 20 km/h becoming light in the morning. High 22. Humidex 26. UV index 7 or high. Tuesday night..A few clouds. Increasing cloudiness before morning. Wind becoming south 20 km/h near midnight. Temperature steady near 20. Bruce Peninsula - Sauble Beach - Tobermory. Tonight..Clear. Increasing cloudiness this evening then a few showers beginning late this evening. Risk of a thunderstorm late this evening and overnight. Wind becoming north 30 km/h gusting to 50 this evening then light late this evening. Low 15. Tuesday..A few showers ending near noon then mainly cloudy. Risk of a thunderstorm in the morning. High 20. UV index 6 or high. Tuesday night..Partly cloudy. Wind becoming south 20 km/h after midnight. Low 13. Hanover - Dundalk - Southern Grey County. Tonight..Showers with risk of a thunderstorm. Wind southeast 20 km/h gusting to 40 becoming light this evening. Low 17. Tuesday..A few showers ending in the morning then cloudy with 30 percent chance of showers. Clearing late in the afternoon. Risk of a thunderstorm in the morning and early in the afternoon. Wind becoming southwest 20 km/h in the morning. High 26. Humidex 31. UV index 7 or high. Tuesday night..A few clouds. Increasing cloudiness before morning. Wind becoming south 20 km/h before morning. Low 19. Owen Sound - Blue Mountains - Northern Grey County. Tonight..Showers with risk of a thunderstorm. Wind becoming south 20 km/h this evening. Low 14. Tuesday..A few showers ending in the morning then cloudy with 30 percent chance of showers. Risk of a thunderstorm in the morning and early in the afternoon. High 18. UV index 3 or moderate. Tuesday night..Mainly cloudy. Wind becoming west 40 km/h gusting to 60 after midnight. Low 15. Barrie - Collingwood - Hillsdale. Tonight..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming northeast 20 km/h after midnight. Low 15. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming west 20 km/h in the afternoon. High 25. Humidex 31. UV index 7 or high. Tuesday night..A few clouds. Wind becoming northwest 20 km/h before morning. Low 14. Midland - Coldwater - Orr Lake. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Low 15. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming west 30 km/h late in the morning then light in the afternoon. High 25. Humidex 30. UV index 7 or high. Tuesday night..A few clouds. Wind becoming southeast 30 km/h gusting to 60 before morning. Low 16. Orillia - Lagoon City - Washago. Tonight..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind southwest 30 km/h becoming light this evening. Wind becoming north 20 after midnight. Low 15. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. High 25. Humidex 30. UV index 7 or high. Tuesday night..Clear. Increasing cloudiness before morning. Low 16. Cobourg - Colborne - Western Northumberland County. Tonight..Partly cloudy. Low 14. Tuesday..A mix of sun and cloud. High 28. Humidex 34. UV index 7 or high. Tuesday night..Partly cloudy. 30 percent chance of showers overnight with risk of a thunderstorm. Low 13. Belleville - Quinte West - Eastern Northumberland County. Tonight..Partly cloudy. Low 14. Tuesday..A mix of sun and cloud. High 28. Humidex 34. UV index 7 or high. Tuesday night..Partly cloudy. 30 percent chance of showers overnight with risk of a thunderstorm. Low 13. Picton - Sandbanks Park. Tonight..Partly cloudy. Low 14. Tuesday..A mix of sun and cloud with 30 percent chance of showers. Risk of a thunderstorm. High 28. Humidex 34. UV index 7 or high. Tuesday night..Partly cloudy. 30 percent chance of showers early in the evening with risk of a thunderstorm. Low 13. Napanee - Consecon. Tonight..Partly cloudy. Low 14. Tuesday..A mix of sun and cloud with 30 percent chance of showers. Risk of a thunderstorm. High 28. Humidex 34. UV index 7 or high. Tuesday night..Partly cloudy. 30 percent chance of showers early in the evening with risk of a thunderstorm. Low 13. Kingston - Odessa - Frontenac Islands. Tonight..Partly cloudy. 30 percent chance of showers before morning with risk of a thunderstorm. Low 14. Tuesday..A mix of sun and cloud with 30 percent chance of showers and risk of a thunderstorm. High 26. Humidex 34. UV index 8 or very high. Tuesday night..Partly cloudy. 30 percent chance of showers early in the evening with risk of a thunderstorm. Low 15. Lindsay - Southern Kawartha Lakes. Tonight..Partly cloudy. Becoming cloudy near midnight with 40 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind becoming south 20 km/h gusting to 40 this evening then light late this evening. Low 15. Tuesday..A mix of sun and cloud with 40 percent chance of showers and risk of a thunderstorm. Wind becoming southwest 20 km/h late in the morning. High 28. Humidex 34. UV index 7 or high. Tuesday night..Clear. Becoming partly cloudy after midnight. Low 13. Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming west 30 km/h this evening then light late this evening. Low 15. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. High 28. Humidex 34. UV index 7 or high. Tuesday night..Clear. Increasing cloudiness before morning. Low 13. Peterborough City - Lakefield - Southern Peterborough County. Tonight..Clear early this evening then partly cloudy with 40 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind becoming east 20 km/h before morning. Low 15. Tuesday..A mix of sun and cloud with 40 percent chance of showers and risk of a thunderstorm. Wind east 20 km/h becoming light in the morning. Wind becoming west 20 gusting to 40 late in the morning. High 28. Humidex 34. UV index 8 or very high. Tuesday night..A few clouds. Low 13. Apsley - Woodview - Northern Peterborough County. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind west 20 km/h becoming light early this evening. Low 15. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming west 20 km/h gusting to 40 in the afternoon. High 28. Humidex 34. UV index 6 or high. Tuesday night..A few clouds. Low 13. Stirling - Tweed - Madoc. Tonight..Increasing cloudiness. Wind southwest 20 km/h becoming light this evening. Low 17. Tuesday..Mainly cloudy with 30 percent chance of showers. Risk of a thunderstorm. Wind becoming west 20 km/h late in the morning. High 29. Humidex 34. UV index 6 or high. Tuesday night..Partly cloudy. 30 percent chance of showers early in the evening with risk of a thunderstorm. Low 15. Tamworth - Sydenham - South Frontenac. Tonight..Clear early this evening then partly cloudy with 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Low 17. Tuesday..Mainly cloudy with 30 percent chance of showers and risk of a thunderstorm. Wind becoming southwest 20 km/h in the afternoon. High 29. Humidex 34. UV index 8 or very high. Tuesday night..Partly cloudy. 30 percent chance of showers early in the evening with risk of a thunderstorm. Low 15. Kaladar - Bannockburn - Bon Echo Park. Tonight..Clear early this evening then partly cloudy with 40 percent chance of showers before morning. Risk of a thunderstorm before morning. Wind southwest 20 km/h becoming light early this evening. Low 15. Tuesday..Mainly cloudy with 40 percent chance of showers and risk of a thunderstorm. Wind becoming west 20 km/h in the afternoon. High 28. Humidex 33. UV index 6 or high. Tuesday night..Partly cloudy. 40 percent chance of showers in the evening with risk of a thunderstorm. Wind northwest 20 km/h becoming light in the evening. Low 12. Bancroft - Hastings Highlands - Denbigh. Tonight..A few clouds. Increasing cloudiness after midnight then showers. Risk of a thunderstorm overnight. Wind west 20 km/h becoming northeast 20 after midnight. Low 15. Tuesday..Showers with risk of a thunderstorm. Amount 10 to 20 mm. Wind northeast 20 km/h becoming southwest 20 in the morning. High 28. Humidex 33. UV index 3 or moderate. Tuesday night..Showers ending early in the evening then partly cloudy. Risk of a thunderstorm early in the evening. Low 12. Gananoque - Mallorytown. Tonight..Clear early this evening then partly cloudy with 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Low 17. Tuesday..Mainly cloudy with 30 percent chance of showers and risk of a thunderstorm. Wind becoming west 20 km/h late in the afternoon. High 29. Humidex 34. UV index 8 or very high. Tuesday night..Partly cloudy. 30 percent chance of showers early in the evening with risk of a thunderstorm. Clearing before morning. Wind west 20 km/h becoming light in the evening. Low 17. Brockville - Prescott. Tonight..Clear. Increasing cloudiness late this evening then 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Wind southwest 20 km/h becoming light early this evening. Low 17. Tuesday..Mainly cloudy with 30 percent chance of showers and risk of a thunderstorm. High 29. Humidex 34. UV index 8 or very high. Tuesday night..Partly cloudy. 30 percent chance of showers early in the evening with risk of a thunderstorm. Low 17. Westport - Charleston Lake. Tonight..Clear early this evening then partly cloudy with 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Wind southwest 20 km/h becoming light early this evening. Low 17. Tuesday..Mainly cloudy with 30 percent chance of showers and risk of a thunderstorm. Wind becoming southwest 20 km/h late in the afternoon. High 29. Humidex 34. UV index 8 or very high. Tuesday night..Partly cloudy. 30 percent chance of showers early in the evening with risk of a thunderstorm. Wind southwest 20 km/h becoming light in the evening. Low 17. Merrickville-Wolford - Kemptville. Tonight..Clear this evening then partly cloudy with 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Wind becoming west 20 km/h gusting to 60 before morning. Low 17. Tuesday..Cloudy with 30 percent chance of showers and risk of a thunderstorm. Wind west 20 km/h gusting to 60 becoming east 30 gusting to 50 then light late in the morning. High 29. Humidex 34. UV index 8 or very high. Tuesday night..Cloudy. 30 percent chance of showers early in the evening with risk of a thunderstorm. Low 17. Ottawa North - Kanata - Orl‚ans. Tonight..Clear early this evening then partly cloudy with 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Wind becoming west 30 km/h gusting to 60 before morning. Low 16. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind west 30 km/h gusting to 60 becoming southeast 20 then light late in the morning. High 27. Humidex 32. UV index 6 or high. Tuesday night..Cloudy. 60 percent chance of showers in the evening with risk of a thunderstorm. Low 16. Ottawa South - Richmond - Metcalfe. Tonight..Clear early this evening then partly cloudy with 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Wind becoming west 30 km/h gusting to 60 before morning. Low 16. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind west 30 km/h gusting to 60 becoming southeast 20 then light late in the morning. High 27. Humidex 32. UV index 6 or high. Tuesday night..Cloudy. 60 percent chance of showers in the evening with risk of a thunderstorm. Low 16. Gatineau. Tonight..Clear early this evening then partly cloudy with 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Low 13. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 60 then light late in the morning. High 25. Humidex 31. UV index 6 or high. Tuesday night..Cloudy. 60 percent chance of showers in the evening with risk of a thunderstorm. Low 15. Prescott and Russell. Tonight..Clear. Partly cloudy overnight with 30 percent chance of showers. Risk of a thunderstorm before morning. Low 16. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind east 20 km/h becoming light late in the morning. High 26. Humidex 32. UV index 7 or high. Tuesday night..Cloudy. 60 percent chance of showers in the evening with risk of a thunderstorm. Low 16. Morrisburg - Long Sault. Tonight..Clear. Increasing cloudiness after midnight then 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Low 16. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming north 20 km/h gusting to 40 then light late in the morning. High 27. Humidex 33. UV index 8 or very high. Tuesday night..Mainly cloudy. 60 percent chance of showers in the evening with risk of a thunderstorm. Low 15. Cornwall - Lancaster. Tonight..Clear. Partly cloudy overnight with 30 percent chance of showers. Risk of a thunderstorm before morning. Low 16. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 60 then light late in the morning. High 27. Humidex 33. UV index 8 or very high. Tuesday night..Mainly cloudy. 60 percent chance of showers in the evening with risk of a thunderstorm. Low 15. Winchester - Newington. Tonight..Clear this evening then partly cloudy with 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Low 16. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind northeast 20 km/h becoming light late in the morning. High 27. Humidex 33. UV index 8 or very high. Tuesday night..Mainly cloudy. 60 percent chance of showers in the evening with risk of a thunderstorm. Low 15. Maxville - Alexandria. Tonight..Clear. Partly cloudy overnight with 30 percent chance of showers. Risk of a thunderstorm before morning. Low 16. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming west 30 km/h gusting to 50 then light late in the morning. High 27. Humidex 33. UV index 8 or very high. Tuesday night..Cloudy. 60 percent chance of showers in the evening with risk of a thunderstorm. Low 15. Plevna - Sharbot Lake - Western Lanark County. Tonight..Clear early this evening then partly cloudy with 40 percent chance of showers before morning. Risk of a thunderstorm before morning. Wind southwest 20 km/h becoming light early this evening. Low 15. Tuesday..Cloudy with 40 percent chance of showers and risk of a thunderstorm. High 27. Humidex 31. UV index 6 or high. Tuesday night..Partly cloudy. 40 percent chance of showers in the evening with risk of a thunderstorm. Low 14. Smiths Falls - Perth - Eastern Lanark County. Tonight..Clear this evening then partly cloudy with 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Wind becoming northwest 20 km/h before morning. Low 15. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind northwest 20 km/h becoming east 20 in the morning. High 27. Humidex 31. UV index 6 or high. Tuesday night..Mainly cloudy. 60 percent chance of showers in the evening with risk of a thunderstorm. Low 14. Port Carling - Port Severn. Tonight..Partly cloudy with 40 percent chance of showers this evening and after midnight. A few showers beginning after midnight. Risk of a thunderstorm this evening and overnight. Amount 10 mm. Wind becoming northeast 20 km/h after midnight. Low 14. Tuesday..A few showers ending near noon then mainly cloudy with 30 percent chance of showers. Risk of a thunderstorm in the morning and afternoon. Amount 10 to 15 mm. High 24. Humidex 29. UV index 7 or high. Tuesday night..A few clouds. Low 13. Bracebridge - Gravenhurst. Tonight..Partly cloudy with 40 percent chance of showers this evening and after midnight. A few showers beginning after midnight. Risk of a thunderstorm this evening and overnight. Amount 10 mm. Wind becoming northeast 40 km/h gusting to 60 after midnight. Low 14. Tuesday..A few showers ending near noon then cloudy with 30 percent chance of showers. Risk of a thunderstorm in the morning and afternoon. Amount 10 to 15 mm. High 24. Humidex 29. UV index 6 or high. Tuesday night..A few clouds. Low 13. Town of Parry Sound - Rosseau - Killbear Park. Tonight..Partly cloudy with 40 percent chance of showers this evening and after midnight. A few showers beginning after midnight. Risk of a thunderstorm this evening and overnight. Amount 10 mm. Low 15. Tuesday..A few showers ending near noon then cloudy with 30 percent chance of showers. Becoming a mix of sun and cloud late in the afternoon. Risk of a thunderstorm in the morning and afternoon. Amount 10 to 15 mm. High 23. Humidex 28. UV index 6 or high. Tuesday night..Partly cloudy. Wind becoming southeast 20 km/h after midnight. Low 13. Huntsville - Baysville. Tonight..Partly cloudy with 40 percent chance of showers this evening and after midnight. A few showers beginning after midnight. Risk of a thunderstorm this evening and overnight. Amount 10 mm. Low 15. Tuesday..A few showers ending near noon then cloudy with 30 percent chance of showers. Risk of a thunderstorm in the morning and afternoon. Amount 10 to 15 mm. High 23. Humidex 28. UV index 5 or moderate. Tuesday night..Clearing in the evening. Low 13. Haliburton - Minden - Southern Haliburton County. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind west 20 km/h gusting to 40 becoming light early this evening. Wind becoming northwest 20 gusting to 40 after midnight. Low 15. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind south 20 km/h becoming light in the afternoon. High 22. Humidex 29. UV index 6 or high. Tuesday night..A few clouds. Increasing cloudiness before morning. Low 12. Oxtongue Lake - Fort Irwin - Northern Haliburton County. Tonight..Increasing cloudiness. Showers beginning overnight. Risk of a thunderstorm overnight. Wind west 20 km/h becoming light early this evening. Wind becoming west 40 gusting to 60 after midnight. Low 15. Tuesday..Showers with risk of a thunderstorm. Amount 10 to 20 mm. Wind becoming southwest 20 km/h late in the morning. High 22. Humidex 29. UV index 3 or moderate. Tuesday night..Showers ending early in the evening then clearing. Risk of a thunderstorm early in the evening. Low 12. Barry's Bay - Killaloe. Tonight..A few clouds. Increasing cloudiness after midnight then showers. Risk of a thunderstorm overnight. Wind west 20 km/h becoming light early this evening. Wind becoming southeast 30 gusting to 60 before morning. Low 16. Tuesday..Showers with risk of a thunderstorm. Amount 10 to 20 mm. Wind southeast 30 km/h gusting to 60 becoming light in the morning. High 22. Humidex 28. UV index 3 or moderate. Tuesday night..Showers ending early in the evening then partly cloudy. Risk of a thunderstorm early in the evening. Low 13. Renfrew - Arnprior - Calabogie. Tonight..Clear early this evening then partly cloudy with showers beginning overnight. Risk of a thunderstorm overnight. Wind northwest 20 km/h becoming light early this evening. Wind becoming southwest 20 gusting to 40 before morning. Low 16. Tuesday..Showers with risk of a thunderstorm. Amount 10 to 20 mm. Wind southwest 20 km/h gusting to 40 becoming light in the morning. Wind becoming northwest 20 in the afternoon. High 22. Humidex 28. UV index 3 or moderate. Tuesday night..Showers ending early in the evening then mainly cloudy. Risk of a thunderstorm early in the evening. Low 13. Petawawa - Pembroke - Cobden. Tonight..Clear early this evening then partly cloudy with showers beginning overnight. Risk of a thunderstorm overnight. Low 14. Tuesday..Showers with risk of a thunderstorm. Amount 10 to 20 mm. High 21. Humidex 26. UV index 3 or moderate. Tuesday night..Showers ending early in the evening then mainly cloudy. Risk of a thunderstorm early in the evening. Low 15. Western Algonquin Park - Lake of Two Rivers. Tonight..Increasing cloudiness. Showers beginning before morning. Risk of a thunderstorm before morning. Low 14. Tuesday..Showers with risk of a thunderstorm. Amount 10 to 20 mm. Wind southeast 20 km/h becoming light late in the morning. High 22. Humidex 28. UV index 3 or moderate. Tuesday night..Partly cloudy. 30 percent chance of showers in the evening. Low 10. Deep River - Whitney - Eastern Algonquin Park. Tonight..Increasing cloudiness. Showers beginning before morning. Risk of a thunderstorm before morning. Wind southwest 20 km/h becoming northeast 20 late this evening. Low 14. Tuesday..Showers with risk of a thunderstorm. Amount 10 to 20 mm. Wind northeast 20 km/h becoming southeast 20 in the morning. High 22. Humidex 28. UV index 3 or moderate. Tuesday night..Partly cloudy. 30 percent chance of showers in the evening. Low 10. Bayfield Inlet - Dunchurch. Tonight..Partly cloudy with 30 percent chance of showers this evening and after midnight. A few showers beginning after midnight. Risk of a thunderstorm overnight. Amount 10 mm. Wind west 20 km/h becoming south 20 late this evening. Low 14. Tuesday..A few showers ending in the afternoon then cloudy with 30 percent chance of showers. Risk of a thunderstorm in the morning and early in the afternoon. Amount 10 to 15 mm. High 22. Humidex 27. UV index 3 or moderate. Tuesday night..Partly cloudy. 30 percent chance of showers early in the evening. Wind becoming south 20 km/h before morning. Low 14. South River - Burk's Falls. Tonight..Partly cloudy with 30 percent chance of showers this evening and after midnight. A few showers beginning after midnight. Risk of a thunderstorm overnight. Amount 10 mm. Wind west 20 km/h becoming south 20 late this evening. Low 14. Tuesday..A few showers ending in the afternoon then cloudy with 30 percent chance of showers. Risk of a thunderstorm in the morning and early in the afternoon. Amount 10 to 15 mm. High 21. Humidex 26. UV index 3 or moderate. Tuesday night..Partly cloudy. 30 percent chance of showers early in the evening. Wind becoming south 20 km/h before morning. Low 14. End $$$$^^ --- up 6 days, 23 hours, 25 minutes * Origin: Northern Realms (1:229/664) .