Subj : Southern Ontario Weather To : All From : Northern Realms Date : Mon May 20 2024 05:05:00 FPCN11 CWTO 200900 Forecasts for Southern Ontario and the National Capital Region issued by Environment Canada at 5:00 a.m. EDT Monday 20 May 2024 for today and Tuesday. The next scheduled forecast will be issued at 11:00 a.m. EDT. City of Toronto. Today..Sunny. Becoming a mix of sun and cloud this morning. High 25. Humidex 27. UV index 8 or very high. Tonight..Clear early this evening then partly cloudy with 30 percent chance of showers overnight. Risk of a thunderstorm overnight. Low 19. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the morning. 40 percent chance of showers late in the afternoon. Risk of a thunderstorm. Wind becoming southwest 20 km/h in the afternoon. High 29. Humidex 36. UV index 8 or very high. Windsor - Leamington - Essex County. Today..Becoming a mix of sun and cloud this morning. 30 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. Wind becoming southwest 30 km/h this afternoon. High 29. Humidex 37. UV index 9 or very high. Tonight..Partly cloudy. 60 percent chance of showers this evening with risk of a thunderstorm. Wind south 20 km/h becoming light late this evening. Low 19. Tuesday..A mix of sun and cloud. 40 percent chance of showers late in the afternoon with risk of a thunderstorm. Wind becoming south 30 km/h gusting to 50 in the afternoon. High 30. Humidex 36. UV index 9 or very high. Chatham-Kent - Rondeau Park. Today..A mix of sun and cloud. 30 percent chance of showers this afternoon with risk of a thunderstorm. High 29. Humidex 34. UV index 9 or very high. Tonight..Partly cloudy. 60 percent chance of showers this evening with risk of a thunderstorm. Low 19. 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 gusting to 40 in the morning. High 30. Humidex 36. UV index 9 or very high. Sarnia - Petrolia - Western Lambton County. Today..A mix of sun and cloud. A few showers beginning this afternoon. Risk of a thunderstorm this afternoon. Wind south 20 km/h. High 29. Humidex 34. UV index 9 or very high. Tonight..A few showers ending before morning then cloudy. Risk of a thunderstorm. Low 19. Tuesday..Becoming a mix of sun and cloud in the morning. 60 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 28. Humidex 34. UV index 8 or very high. Watford - Pinery Park - Eastern Lambton County. Today..A mix of sun and cloud. A few showers beginning this afternoon. Risk of a thunderstorm this afternoon. Wind becoming southwest 20 km/h this afternoon. High 31. Humidex 36. UV index 9 or very high. Tonight..A few showers ending before morning then partly cloudy. Risk of a thunderstorm. Wind becoming northwest 20 km/h gusting to 40 before morning. 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 near noon. High 31. Humidex 36. UV index 8 or very high. Rodney - Shedden - Western Elgin County. Today..A mix of sun and cloud. 30 percent chance of showers this afternoon with risk of a thunderstorm. High 27. Humidex 31. UV index 9 or very high. 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 30. Humidex 34. UV index 8 or very high. St. Thomas - Aylmer - Eastern Elgin County. Today..A mix of sun and cloud. 30 percent chance of showers this afternoon with risk of a thunderstorm. High 27. Humidex 31. UV index 9 or very high. 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 30. Humidex 34. UV index 8 or very high. Strathroy - Komoka - Western Middlesex County. Today..A mix of sun and cloud. A few showers beginning this afternoon. Risk of a thunderstorm this afternoon. Wind southeast 20 km/h becoming light near noon. High 31. Humidex 36. UV index 9 or very high. Tonight..A few showers ending before morning then partly cloudy. Risk of a thunderstorm. 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 early in the afternoon then light late in the afternoon. High 31. Humidex 34. UV index 8 or very high. London - Parkhill - Eastern Middlesex County. Today..A mix of sun and cloud. A few showers beginning this afternoon. Risk of a thunderstorm this afternoon. Wind becoming south 20 km/h late this morning. High 31. Humidex 36. UV index 9 or very high. Tonight..A few showers ending before morning then clear. Risk of a thunderstorm. Low 18. Tuesday..Sunny early in the morning then a mix of sun and cloud with 60 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. Wind becoming southwest 20 km/h gusting to 40 early in the afternoon. High 31. Humidex 34. UV index 8 or very high. Simcoe - Delhi - Norfolk. Today..A mix of sun and cloud. Becoming sunny this afternoon. Wind becoming southwest 20 km/h early this afternoon. High 29. Humidex 34. UV index 9 or very high. Tonight..Clear this evening and after midnight then partly cloudy with 30 percent chance of showers overnight. Risk of a thunderstorm overnight. 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 near noon. High 29. Humidex 35. UV index 8 or very high. Dunnville - Caledonia - Haldimand. Today..A mix of sun and cloud. Becoming sunny this afternoon. High 29. Humidex 34. UV index 9 or very high. Tonight..Clear. Increasing cloudiness after midnight. Low 18. Tuesday..A mix of sun and cloud. 30 percent chance of showers late in the afternoon with risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 early in the afternoon. High 30. Humidex 35. UV index 8 or very high. Woodstock - Tillsonburg - Oxford County. Today..A mix of sun and cloud. 40 percent chance of showers this afternoon with risk of a thunderstorm. Wind becoming southwest 20 km/h late this morning. High 30. Humidex 35. UV index 9 or very high. Tonight..Partly cloudy with 60 percent chance of showers. Risk of a thunderstorm. Low 19. 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 southwest 30 km/h gusting to 50 in the morning. High 30. Humidex 35. UV index 8 or very high. Brantford - County of Brant. Today..Mainly sunny. Wind becoming southwest 20 km/h this afternoon. High 30. Humidex 35. UV index 9 or very high. Tonight..Clear this evening and after midnight then partly cloudy with 30 percent chance of showers overnight. Risk of a thunderstorm overnight. 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 20 km/h gusting to 40 early in the afternoon. High 30. Humidex 35. UV index 8 or very high. Niagara Falls - Welland - Southern Niagara Region. Today..A mix of sun and cloud. High 27. Humidex 33. UV index 8 or very high. Tonight..Clear. Increasing cloudiness after midnight. Low 19. Tuesday..A mix of sun and cloud. 30 percent chance of showers late in the afternoon with risk of a thunderstorm. Wind west 20 km/h becoming light late in the morning. High 30. Humidex 36. UV index 8 or very high. St. Catharines - Grimsby - Northern Niagara Region. Today..A mix of sun and cloud. High 27. Humidex 33. UV index 8 or very high. Tonight..Clear. Increasing cloudiness after midnight. Low 19. Tuesday..A mix of sun and cloud. 30 percent chance of showers late in the afternoon with risk of a thunderstorm. Wind west 20 km/h becoming light late in the morning. High 30. Humidex 36. UV index 8 or very high. City of Hamilton. Today..Mainly sunny. Wind becoming south 20 km/h this afternoon. High 29. Humidex 35. UV index 9 or very high. Tonight..Clear this evening and after midnight then partly cloudy with 30 percent chance of showers overnight. Risk of a thunderstorm overnight. Low 19. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the morning. 40 percent chance of showers late in the afternoon. Risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 early in the afternoon. High 30. Humidex 36. UV index 8 or very high. Burlington - Oakville. Today..Mainly sunny. High 21. UV index 8 or very high. Tonight..A few clouds. Increasing cloudiness after midnight then 30 percent chance of showers overnight. Risk of a thunderstorm overnight. Low 15. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the morning. 40 percent chance of showers late in the afternoon. Risk of a thunderstorm. High 27. Humidex 32. UV index 8 or very high. Halton Hills - Milton. Today..Sunny. Becoming a mix of sun and cloud this morning. High 27. Humidex 33. UV index 8 or very high. Tonight..Partly cloudy. 30 percent chance of showers overnight with risk of a thunderstorm. Low 18. Tuesday..Mainly cloudy. 30 percent chance of showers early in the morning. 40 percent chance of showers late in the afternoon. Risk of a thunderstorm. High 30. Humidex 36. UV index 7 or high. Mississauga - Brampton. Today..Sunny. Becoming a mix of sun and cloud this morning. Wind becoming southwest 20 km/h gusting to 40 this afternoon then light late this afternoon. High 27. Humidex 33. UV index 8 or very high. Tonight..A few clouds. Increasing cloudiness after midnight then 30 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind becoming north 20 km/h gusting to 40 after midnight then light overnight. Low 18. Tuesday..Mainly cloudy. 30 percent chance of showers early in the morning. 40 percent chance of showers late in the afternoon. Risk of a thunderstorm. High 30. Humidex 36. UV index 7 or high. Caledon. Today..Sunny this morning then a mix of sun and cloud with 60 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 28. Humidex 33. UV index 8 or very high. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Low 19. Tuesday..Cloudy. 60 percent chance of showers early in the morning. 30 percent chance of showers late in the afternoon. Risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 near noon. High 29. Humidex 34. UV index 7 or high. Vaughan - Richmond Hill - Markham. Today..Sunny. Becoming a mix of sun and cloud near noon. High 29. Humidex 32. UV index 9 or very high. Tonight..A few clouds. Increasing cloudiness after midnight then 30 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind becoming northwest 20 km/h gusting to 40 after midnight then light before morning. Low 17. Tuesday..Mainly cloudy. 30 percent chance of showers early in the morning. 40 percent chance of showers late in the afternoon. Risk of a thunderstorm. Wind becoming south 20 km/h in the afternoon. High 28. Humidex 34. UV index 7 or high. Newmarket - Georgina - Northern York Region. Today..Sunny this morning then a mix of sun and cloud with 60 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 29. Humidex 32. UV index 9 or very high. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Low 17. Tuesday..Mainly cloudy. 60 percent chance of showers early in the morning. 30 percent chance of showers late in the afternoon. Risk of a thunderstorm. High 28. Humidex 34. UV index 7 or high. Pickering - Oshawa - Southern Durham Region. Today..Sunny. Becoming a mix of sun and cloud near noon. High 28. Humidex 33. UV index 9 or very high. Tonight..Clear. Becoming partly cloudy this evening. Low 17. Tuesday..A mix of sun and cloud. 60 percent chance of showers late in the afternoon with risk of a thunderstorm. High 26. Humidex 33. UV index 8 or very high. Uxbridge - Beaverton - Northern Durham Region. Today..Sunny this morning then a mix of sun and cloud with 60 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 28. Humidex 33. UV index 9 or very high. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Low 17. Tuesday..Mainly cloudy. 60 percent chance of showers early in the morning. 30 percent chance of showers late in the afternoon. Risk of a thunderstorm. Wind east 20 km/h becoming light in the morning. High 26. Humidex 33. UV index 7 or high. Goderich - Bluewater - Southern Huron County. Today..A mix of sun and cloud. A few showers beginning this afternoon. Risk of a thunderstorm this afternoon. High 29. Humidex 34. UV index 8 or very high. Tonight..A few showers ending before morning then mainly cloudy. Risk of a thunderstorm. Wind becoming northwest 30 km/h then light near midnight. Low 17. Tuesday..Mainly cloudy. 60 percent chance of showers in the afternoon with risk of a thunderstorm. High 27. Humidex 33. UV index 8 or very high. Wingham - Blyth - Northern Huron County. Today..Sunny early this morning then a mix of sun and cloud with a few showers beginning this afternoon. Risk of a thunderstorm this afternoon. High 29. Humidex 34. UV index 8 or very high. Tonight..A few showers ending before morning then mainly cloudy. Risk of a thunderstorm. Low 17. Tuesday..Cloudy. Becoming a mix of sun and cloud near noon with 60 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. Wind becoming southwest 20 km/h in the afternoon. High 27. Humidex 33. UV index 8 or very high. Stratford - Mitchell - Southern Perth County. Today..A mix of sun and cloud. A few showers beginning this afternoon. Risk of a thunderstorm this afternoon. Wind becoming southwest 20 km/h this morning. High 28. Humidex 33. UV index 9 or very high. Tonight..A few showers ending before morning then partly cloudy. Risk of a thunderstorm. Wind west 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 30 km/h gusting to 50 late in the morning. High 29. Humidex 34. UV index 8 or very high. Listowel - Milverton - Northern Perth County. Today..Sunny early this morning then a mix of sun and cloud with a few showers beginning this afternoon. Risk of a thunderstorm this afternoon. Wind becoming southwest 20 km/h this afternoon. High 28. Humidex 33. UV index 9 or very high. Tonight..A few showers ending before morning then partly cloudy. Risk of a thunderstorm. Low 19. Tuesday..Cloudy. Becoming a mix of sun and cloud near noon with 60 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. Wind becoming southwest 20 km/h late in the morning. High 29. Humidex 34. UV index 8 or very high. Kitchener - Cambridge - Region of Waterloo. Today..A mix of sun and cloud. 40 percent chance of showers this afternoon with risk of a thunderstorm. Wind becoming south 20 km/h near noon. High 27. Humidex 34. UV index 8 or very high. Tonight..Partly cloudy with 60 percent chance of showers. Risk of a thunderstorm. Low 17. Tuesday..Mainly cloudy. 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 late in the morning. High 29. Humidex 34. UV index 7 or high. Guelph - Erin - Southern Wellington County. Today..Sunny early this morning then a mix of sun and cloud with 60 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 27. Humidex 34. UV index 8 or very high. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. 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 gusting to 40 early in the afternoon. High 29. Humidex 34. UV index 7 or high. Mount Forest - Arthur - Northern Wellington County. Today..Sunny early this morning then a mix of sun and cloud with a few showers beginning this afternoon. Risk of a thunderstorm this afternoon. Wind becoming southwest 20 km/h near noon. High 27. Humidex 34. UV index 8 or very high. Tonight..A few showers ending before morning then mainly cloudy. Risk of a thunderstorm. Low 17. Tuesday..Mainly cloudy. 60 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming west 20 km/h gusting to 40 near noon. High 29. Humidex 34. UV index 7 or high. Orangeville - Grand Valley - Southern Dufferin County. Today..Sunny this morning then a mix of sun and cloud with 60 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. Wind becoming west 20 km/h this afternoon. High 28. Humidex 32. UV index 8 or very high. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming north 20 km/h after midnight. Low 19. Tuesday..Cloudy. 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 early in the afternoon. High 29. Humidex 34. UV index 6 or high. Shelburne - Mansfield - Northern Dufferin County. Today..Sunny this morning then a mix of sun and cloud with 60 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. Wind becoming southwest 20 km/h this afternoon. High 28. Humidex 32. UV index 8 or very high. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Low 19. Tuesday..Cloudy. 60 percent chance of showers early in the morning. 30 percent chance of showers late in the afternoon. Risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 near noon. High 29. Humidex 34. UV index 6 or high. Innisfil - New Tecumseth - Angus. Today..Sunny this morning then a mix of sun and cloud with 60 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 30. Humidex 36. UV index 8 or very high. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming northwest 20 km/h gusting to 40 after midnight then light. Low 16. Tuesday..Cloudy. 60 percent chance of showers early in the morning. 30 percent chance of showers late in the afternoon. Risk of a thunderstorm. High 29. Humidex 35. UV index 6 or high. Saugeen Shores - Kincardine - Southern Bruce County. Today..Sunny early this morning then a mix of sun and cloud with 40 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 26. Humidex 29. UV index 8 or very high. Tonight..Mainly cloudy. 40 percent chance of showers early this evening. Showers beginning this evening. Risk of a thunderstorm this evening and overnight. Wind becoming northwest 20 km/h gusting to 40 then light late this evening. Low 15. Tuesday..Showers ending in the morning then a mix of sun and cloud. Risk of a thunderstorm early in the morning. High 22. Humidex 25. UV index 7 or high. Bruce Peninsula - Sauble Beach - Tobermory. Today..Sunny. High 26. Humidex 29. UV index 8 or very high. Tonight..Becoming cloudy this evening with a few showers. Risk of a thunderstorm. Wind northeast 20 km/h becoming light near midnight. Low 15. Tuesday..A few showers ending in the afternoon then mainly cloudy. Risk of a thunderstorm in the morning and early in the afternoon. High 22. Humidex 25. UV index 6 or high. Hanover - Dundalk - Southern Grey County. Today..Sunny this morning then a mix of sun and cloud with a few showers beginning this afternoon. Risk of a thunderstorm this afternoon. Wind becoming west 20 km/h this afternoon. High 31. Humidex 33. UV index 8 or very high. Tonight..Showers with risk of a thunderstorm. Wind becoming north 20 km/h near midnight. Low 17. Tuesday..Mainly cloudy. 40 percent chance of showers in the morning and early in the afternoon with risk of a thunderstorm. Wind becoming southwest 20 km/h near noon. High 28. Humidex 32. UV index 6 or high. Owen Sound - Blue Mountains - Northern Grey County. Today..Sunny this morning and early this afternoon then a mix of sun and cloud with a few showers beginning this afternoon. Risk of a thunderstorm this afternoon. High 26. Humidex 28. UV index 8 or very high. Tonight..Showers with risk of a thunderstorm. Low 15. Tuesday..Cloudy. 40 percent chance of showers in the morning and early in the afternoon with risk of a thunderstorm. High 22. Humidex 27. UV index 5 or moderate. Barrie - Collingwood - Hillsdale. Today..Sunny this morning then a mix of sun and cloud with 40 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 25. Humidex 27. UV index 8 or very high. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming north 20 km/h gusting to 40 after midnight then light overnight. Low 15. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. High 25. Humidex 31. UV index 6 or high. Midland - Coldwater - Orr Lake. Today..Sunny this morning then a mix of sun and cloud with 40 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 25. UV index 8 or very high. Tonight..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming northwest 30 km/h gusting to 50 then light after midnight. Low 16. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. High 21. Humidex 27. UV index 7 or high. Orillia - Lagoon City - Washago. Today..Sunny this morning then a mix of sun and cloud with 40 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 24. Humidex 28. UV index 8 or very high. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Low 16. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. High 21. Humidex 27. UV index 6 or high. Cobourg - Colborne - Western Northumberland County. Today..Mainly sunny. Fog patches dissipating this morning. High 26. Humidex 29. UV index 8 or very high. Tonight..Partly cloudy. Low 14. Tuesday..Mainly cloudy. 60 percent chance of showers late in the afternoon with risk of a thunderstorm. Wind east 20 km/h becoming light in the morning. High 27. Humidex 34. UV index 9 or very high. Belleville - Quinte West - Eastern Northumberland County. Today..Mainly sunny. Fog patches dissipating this morning. High 26. Humidex 29. UV index 8 or very high. Tonight..Partly cloudy. Low 14. Tuesday..Mainly cloudy. 60 percent chance of showers late in the afternoon with risk of a thunderstorm. Wind east 20 km/h becoming light in the morning. High 27. Humidex 34. UV index 9 or very high. Picton - Sandbanks Park. Today..Mainly sunny. Fog patches dissipating this morning. High 26. Humidex 29. UV index 8 or very high. Tonight..Partly cloudy. Low 14. Tuesday..A mix of sun and cloud with 30 percent chance of showers. Risk of a thunderstorm. Wind east 20 km/h becoming light in the morning. High 27. Humidex 34. UV index 9 or very high. Napanee - Consecon. Today..Mainly sunny. Fog patches dissipating this morning. High 26. Humidex 29. UV index 8 or very high. Tonight..Partly cloudy. Low 14. Tuesday..A mix of sun and cloud with 30 percent chance of showers. Risk of a thunderstorm. Wind east 20 km/h becoming light in the morning. High 27. Humidex 34. UV index 9 or very high. Kingston - Odessa - Frontenac Islands. Today..Cloudy. Clearing this morning. Fog patches dissipating this morning. High 20. UV index 8 or very high. Tonight..Partly cloudy. 30 percent chance of showers before morning with risk of a thunderstorm. Low 13. Tuesday..A mix of sun and cloud with 60 percent chance of showers and risk of a thunderstorm. Wind east 20 km/h becoming light late in the morning. High 25. Humidex 31. UV index 8 or very high. Lindsay - Southern Kawartha Lakes. Today..Sunny this morning then a mix of sun and cloud with 60 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 28. Humidex 32. UV index 8 or very high. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Low 15. Tuesday..Mainly cloudy. 60 percent chance of showers early in the morning. 30 percent chance of showers late in the afternoon. Risk of a thunderstorm. High 26. Humidex 32. UV index 7 or high. Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes. Today..A mix of sun and cloud. 40 percent chance of showers this afternoon with risk of a thunderstorm. High 28. Humidex 32. UV index 8 or very high. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Low 15. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. High 26. Humidex 32. UV index 6 or high. Peterborough City - Lakefield - Southern Peterborough County. Today..A mix of sun and cloud. 60 percent chance of showers this afternoon with risk of a thunderstorm. Fog patches dissipating this morning. High 28. Humidex 32. UV index 8 or very high. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Low 15. Tuesday..Mainly cloudy. 60 percent chance of showers early in the morning. 30 percent chance of showers late in the afternoon. Risk of a thunderstorm. High 26. Humidex 32. UV index 7 or high. Apsley - Woodview - Northern Peterborough County. Today..A mix of sun and cloud. 40 percent chance of showers this afternoon with risk of a thunderstorm. High 28. Humidex 32. UV index 8 or very high. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Low 15. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. High 26. Humidex 32. UV index 6 or high. Stirling - Tweed - Madoc. Today..Clearing this morning. Fog patches dissipating this morning. High 29. UV index 8 or very high. Tonight..Clear. Increasing cloudiness late this evening. Low 16. Tuesday..Mainly cloudy with 30 percent chance of showers. Risk of a thunderstorm. Wind northwest 20 km/h becoming light in the morning. High 29. Humidex 34. UV index 7 or high. Tamworth - Sydenham - South Frontenac. Today..Mainly cloudy. Clearing this morning. Fog patches dissipating this morning. High 29. UV index 8 or very high. Tonight..Clear early 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 east 20 km/h becoming light in the morning. High 29. Humidex 34. UV index 9 or very high. Kaladar - Bannockburn - Bon Echo Park. Today..Clearing this morning. High 28. UV index 8 or very high. Tonight..Clear. Increasing cloudiness near midnight then 60 percent chance of showers before morning. Risk of a thunderstorm before morning. Low 14. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind north 20 km/h becoming light in the morning. High 27. Humidex 32. UV index 6 or high. Bancroft - Hastings Highlands - Denbigh. Today..Sunny. High 27. UV index 8 or very high. Tonight..Clear. Increasing cloudiness near midnight then showers. Risk of a thunderstorm overnight. Wind becoming north 20 km/h overnight. Low 13. Tuesday..Showers with risk of a thunderstorm. High 23. Humidex 30. UV index 3 or moderate. Gananoque - Mallorytown. Today..Clearing this morning. Fog patches dissipating this morning. High 30. Humidex 34. UV index 9 or very high. Tonight..Clear early this evening then partly cloudy with 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Low 15. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind northeast 20 km/h becoming light in the morning. High 28. Humidex 32. UV index 9 or very high. Brockville - Prescott. Today..Clearing. Fog patches dissipating this morning. High 30. Humidex 34. UV index 9 or very high. Tonight..Clear this evening and after midnight then partly cloudy with 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Low 15. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind east 20 km/h becoming light late in the morning. High 28. Humidex 32. UV index 9 or very high. Westport - Charleston Lake. Today..Clearing. Fog patches dissipating this morning. High 30. Humidex 34. UV index 9 or very high. Tonight..Clear. Increasing cloudiness after midnight then 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Low 15. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind northeast 20 km/h becoming light in the morning. High 28. Humidex 32. UV index 7 or high. Merrickville-Wolford - Kemptville. Today..Clearing this morning. Fog patches dissipating this morning. High 30. Humidex 34. UV index 9 or very high. Tonight..Clear. Increasing cloudiness overnight then 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Wind becoming northwest 30 km/h gusting to 50 before morning. Low 15. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind northwest 20 km/h becoming light in the morning. High 28. Humidex 32. UV index 7 or high. Ottawa North - Kanata - Orl‚ans. Today..Sunny. High 30. Humidex 32. UV index 8 or very high. Tonight..Clear. Increasing cloudiness overnight then 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Wind becoming west 30 km/h gusting to 50 before morning. Low 15. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. High 24. Humidex 30. UV index 6 or high. Ottawa South - Richmond - Metcalfe. Today..Sunny. High 30. Humidex 32. UV index 8 or very high. Tonight..Clear. Increasing cloudiness overnight then 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Wind becoming west 30 km/h gusting to 50 before morning. Low 15. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. High 24. Humidex 30. UV index 6 or high. Gatineau. Today..A mix of sun and cloud. Becoming sunny this morning. High 28. Humidex 31. UV index 8 or very high. Tonight..Clear. Partly cloudy before morning with 30 percent chance of showers. Risk of a thunderstorm before morning. Low 11. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. High 21. Humidex 26. UV index 6 or high. Prescott and Russell. Today..A mix of sun and cloud. Becoming sunny this morning. High 29. Humidex 32. UV index 9 or very high. Tonight..Clear. Partly cloudy before morning with 30 percent chance of showers. Risk of a thunderstorm before morning. Wind becoming west 30 km/h gusting to 70 before morning. Low 13. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming northwest 20 km/h gusting to 40 then light in the morning. High 23. Humidex 28. UV index 6 or high. Morrisburg - Long Sault. Today..Clearing. High 30. Humidex 33. UV index 9 or very high. Tonight..Clear this evening and after midnight 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. High 26. Humidex 31. UV index 8 or very high. Cornwall - Lancaster. Today..Sunny. High 30. Humidex 33. UV index 9 or very high. Tonight..Clear. Partly cloudy before morning with 30 percent chance of showers. Risk of a thunderstorm before morning. Low 13. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. High 26. Humidex 31. UV index 8 or very high. Winchester - Newington. Today..Clearing. High 30. Humidex 33. UV index 9 or very high. Tonight..Clear this evening and after midnight 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 70 before morning. Low 13. 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 31. UV index 8 or very high. Maxville - Alexandria. Today..Clearing. High 28. Humidex 32. UV index 8 or very high. Tonight..Clear. Partly cloudy before morning with 30 percent chance of showers. Risk of a thunderstorm before morning. Low 13. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind west 20 km/h gusting to 40 becoming light in the morning. High 24. Humidex 29. UV index 6 or high. Plevna - Sharbot Lake - Western Lanark County. Today..Sunny. High 29. Humidex 31. UV index 8 or very high. Tonight..Clear. Increasing cloudiness near midnight then 60 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. High 26. Humidex 32. UV index 6 or high. Smiths Falls - Perth - Eastern Lanark County. Today..A mix of sun and cloud. Becoming sunny this morning. High 29. Humidex 31. UV index 8 or very high. Tonight..Clear. Increasing cloudiness after midnight then 30 percent chance of showers before morning. Risk of a thunderstorm before morning. Low 15. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind northeast 20 km/h becoming light in the morning. High 26. Humidex 32. UV index 8 or very high. Port Carling - Port Severn. Today..Sunny this morning then a mix of sun and cloud with 40 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 27. UV index 8 or very high. Tonight..Mainly cloudy. 40 percent chance of showers early this evening. A few showers beginning this evening. Risk of a thunderstorm this evening and overnight. Wind becoming northwest 30 km/h then light after midnight. Low 17. Tuesday..Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. High 22. Humidex 28. UV index 6 or high. Bracebridge - Gravenhurst. Today..Sunny this morning and early this afternoon then a mix of sun and cloud with 40 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 28. UV index 8 or very high. Tonight..Mainly cloudy. 40 percent chance of showers early this evening. A few showers beginning this evening. Risk of a thunderstorm this evening and overnight. Wind becoming northwest 20 km/h after midnight. Low 15. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. High 26. Humidex 32. UV index 6 or high. Town of Parry Sound - Rosseau - Killbear Park. Today..Sunny this morning and early this afternoon then a mix of sun and cloud with 40 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 28. UV index 8 or very high. Tonight..Mainly cloudy. 40 percent chance of showers early this evening. A few showers beginning this evening. Risk of a thunderstorm this evening and overnight. Wind becoming west 30 km/h near midnight then northeast 20. Low 15. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. High 26. Humidex 32. UV index 6 or high. Huntsville - Baysville. Today..Sunny this morning and early this afternoon then a mix of sun and cloud with 40 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 28. UV index 8 or very high. Tonight..Mainly cloudy. 40 percent chance of showers early this evening. A few showers beginning this evening. Risk of a thunderstorm this evening and overnight. Wind becoming west 30 km/h gusting to 50 after midnight then light. Low 16. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. High 24. Humidex 29. UV index 5 or moderate. Haliburton - Minden - Southern Haliburton County. Today..Sunny this morning and early this afternoon then a mix of sun and cloud with 40 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 26. Humidex 27. UV index 8 or very high. Tonight..Partly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind becoming north 20 km/h after midnight. Low 15. Tuesday..Cloudy with 60 percent chance of showers and risk of a thunderstorm. High 25. Humidex 32. UV index 6 or high. Oxtongue Lake - Fort Irwin - Northern Haliburton County. Today..Sunny. Wind becoming west 20 km/h this afternoon. High 26. Humidex 27. UV index 8 or very high. Tonight..Clear. Increasing cloudiness late this evening then showers. Risk of a thunderstorm overnight. Low 15. Tuesday..Showers with risk of a thunderstorm. High 25. Humidex 32. UV index 3 or moderate. Barry's Bay - Killaloe. Today..Sunny. Wind becoming northwest 20 km/h this afternoon. High 29. UV index 8 or very high. Tonight..A few clouds. Increasing cloudiness near midnight then showers. Risk of a thunderstorm overnight. Wind becoming west 20 km/h gusting to 40 overnight then light before morning. Low 15. Tuesday..Showers with risk of a thunderstorm. High 24. Humidex 31. UV index 3 or moderate. Renfrew - Arnprior - Calabogie. Today..Sunny. High 28. UV index 8 or very high. Tonight..Partly cloudy. Showers beginning near midnight. Risk of a thunderstorm overnight. Low 15. Tuesday..Showers with risk of a thunderstorm. High 22. Humidex 28. UV index 3 or moderate. Petawawa - Pembroke - Cobden. Today..Sunny. High 27. UV index 8 or very high. Tonight..A few clouds. Increasing cloudiness late this evening then showers. Risk of a thunderstorm overnight. Low 12. Tuesday..Showers with risk of a thunderstorm. High 21. Humidex 27. UV index 3 or moderate. Western Algonquin Park - Lake of Two Rivers. Today..Sunny. High 27. UV index 8 or very high. Tonight..Partly cloudy. Becoming cloudy near midnight with showers. Risk of a thunderstorm overnight. Wind becoming west 30 km/h gusting to 60 after midnight then light overnight. Low 13. Tuesday..Showers ending late in the afternoon then cloudy. Risk of a thunderstorm. High 22. Humidex 28. UV index 3 or moderate. Deep River - Whitney - Eastern Algonquin Park. Today..Sunny. High 27. UV index 8 or very high. Tonight..A few clouds. Increasing cloudiness late this evening then showers. Risk of a thunderstorm overnight. Low 13. Tuesday..Showers ending late in the afternoon then cloudy. Risk of a thunderstorm. High 22. Humidex 28. UV index 3 or moderate. Bayfield Inlet - Dunchurch. Today..Sunny. High 27. UV index 8 or very high. Tonight..Increasing cloudiness. A few showers beginning this evening. Risk of a thunderstorm. Wind becoming southwest 20 km/h after midnight. Low 14. Tuesday..A few showers ending in the afternoon then cloudy. Risk of a thunderstorm in the morning and early in the afternoon. High 23. Humidex 29. UV index 5 or moderate. South River - Burk's Falls. Today..Sunny. High 27. UV index 8 or very high. Tonight..Increasing cloudiness. A few showers beginning this evening. Risk of a thunderstorm. Wind becoming southwest 20 km/h after midnight. Low 14. Tuesday..A few showers ending in the afternoon then cloudy. Risk of a thunderstorm in the morning and early in the afternoon. High 23. Humidex 29. UV index 5 or moderate. End $$$$^^ --- up 6 days, 12 hours, 55 minutes * Origin: Northern Realms (1:229/664) .