Subj : Southern Ontario Weather To : All From : Northern Realms Date : Sun May 19 2024 11:05:02 FPCN11 CWTO 191500 Forecasts for Southern Ontario and the National Capital Region issued by Environment Canada at 11:00 a.m. EDT Sunday 19 May 2024 for today and Monday. The next scheduled forecast will be issued at 3:30 p.m. EDT. City of Toronto. Today..A mix of sun and cloud. 30 percent chance of showers late this afternoon with risk of a thunderstorm. High 24. Humidex 29. UV index 8 or very high. Tonight..Partly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Clearing near midnight. Fog patches developing after midnight. Low 14. Monday..Sunny. Fog patches dissipating in the morning. High 26. Humidex 30. UV index 8 or very high. Windsor - Leamington - Essex 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 9 or very high. Tonight..A few showers ending this evening then partly cloudy with 30 percent chance of showers. Risk of a thunderstorm early this evening. Fog patches developing after midnight. Low 16. Monday..A mix of sun and cloud. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Fog patches dissipating in the morning. Wind becoming south 20 km/h late in the afternoon. High 30. Humidex 33. UV index 9 or very high. Chatham-Kent - Rondeau Park. Today..A mix of sun and cloud. 60 percent chance of showers late this afternoon with risk of a thunderstorm. High 28. Humidex 33. UV index 9 or very high. Tonight..Partly cloudy. 60 percent chance of showers this evening with risk of a thunderstorm. Fog patches developing after midnight. Low 14. Monday..A mix of sun and cloud. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Fog patches dissipating in the morning. High 28. Humidex 31. UV index 9 or very high. Sarnia - Petrolia - Western Lambton County. Today..Mainly cloudy. A few showers beginning this afternoon. Risk of a thunderstorm this afternoon. High 27. Humidex 32. UV index 9 or very high. Tonight..A few showers ending early this evening then clearing. Risk of a thunderstorm early this evening. Low 12. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 28. Humidex 33. UV index 9 or very high. Watford - Pinery Park - Eastern Lambton County. Today..A mix of sun and cloud. 60 percent chance of showers late this afternoon with risk of a thunderstorm. High 27. Humidex 32. UV index 9 or very high. Tonight..Partly cloudy. 60 percent chance of showers early this evening with risk of a thunderstorm. Low 13. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 31. Humidex 35. 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 25. Humidex 28. UV index 9 or very high. Tonight..Partly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Fog patches developing after midnight. Low 13. Monday..A mix of sun and cloud. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Fog patches dissipating in the morning. High 28. Humidex 30. UV index 9 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 25 except 20 near Lake Erie. Humidex 28. UV index 9 or very high. Tonight..Partly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Fog patches developing after midnight. Low 13. Monday..A mix of sun and cloud. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Fog patches dissipating in the morning. High 28. Humidex 30. UV index 9 or very high. Strathroy - Komoka - Western Middlesex County. Today..A mix of sun and cloud. 60 percent chance of showers this afternoon with risk of a thunderstorm. High 27. Humidex 31. UV index 9 or very high. Tonight..Partly cloudy. 60 percent chance of showers early this evening with risk of a thunderstorm. Low 13. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. Wind becoming southwest 20 km/h in the afternoon. High 31. Humidex 34. UV index 9 or very high. London - Parkhill - Eastern Middlesex County. Today..A mix of sun and cloud. 60 percent chance of showers this afternoon with risk of a thunderstorm. High 27. Humidex 31. UV index 9 or very high. Tonight..Partly cloudy. 60 percent chance of showers early this evening with risk of a thunderstorm. Low 13. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. Wind becoming southwest 20 km/h in the afternoon. High 31. Humidex 34. UV index 9 or very high. Simcoe - Delhi - Norfolk. Today..A mix of sun and cloud. High 26 except 20 near Lake Erie. Humidex 31. UV index 9 or very high. Tonight..A few clouds. Fog patches developing after midnight. Low 12. Monday..Sunny. Fog patches dissipating in the morning. High 28. Humidex 32. UV index 9 or very high. Dunnville - Caledonia - Haldimand. Today..A mix of sun and cloud. High 25 except 20 near Lake Erie. Humidex 30. UV index 9 or very high. Tonight..A few clouds. Fog patches developing after midnight. Low 15. Monday..Sunny. Fog patches dissipating in the morning. High 28. Humidex 32. UV index 9 or very high. Woodstock - Tillsonburg - Oxford County. Today..A mix of sun and cloud. 60 percent chance of showers this afternoon with risk of a thunderstorm. High 27. Humidex 32. UV index 9 or very high. Tonight..Partly cloudy with 60 percent chance of showers early this evening and risk of a thunderstorm. Clearing this evening. Low 13. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 28. Humidex 32. UV index 9 or very high. Brantford - County of Brant. Today..Sunny near noon then a mix of sun and cloud with 60 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 27. Humidex 32. UV index 9 or very high. Tonight..Partly cloudy. 60 percent chance of showers early this evening with risk of a thunderstorm. Low 13. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 28. Humidex 32. UV index 9 or very high. Niagara Falls - Welland - Southern Niagara Region. Today..A mix of sun and cloud. High 26 except 20 near Lake Erie. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy. Fog patches developing after midnight. Temperature steady near 16. Monday..Sunny. Fog patches dissipating in the morning. High 23. Humidex 27. UV index 8 or very high. St. Catharines - Grimsby - Northern Niagara Region. Today..A mix of sun and cloud. High 24. Humidex 29. UV index 8 or very high. Tonight..Partly cloudy. Becoming clear after midnight. Fog patches developing after midnight. Low 13. Monday..Sunny. Fog patches dissipating in the morning. High 28. Humidex 32. UV index 8 or very high. City of Hamilton. Today..Mainly sunny. High 26. Humidex 31. UV index 8 or very high. Tonight..A few clouds. Fog patches developing after midnight. Low 13. Monday..Sunny. Fog patches dissipating in the morning. High 28. Humidex 31. UV index 8 or very high. Burlington - Oakville. Today..A mix of sun and cloud. 30 percent chance of showers late this afternoon with risk of a thunderstorm. High 25. Humidex 28. UV index 9 or very high. Tonight..Partly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Clearing near midnight. Fog patches developing after midnight. Low 13. Monday..Sunny. Fog patches dissipating in the morning. High 21. UV index 9 or very high. Halton Hills - Milton. Today..Increasing cloudiness near noon. 30 percent chance of showers late this afternoon with risk of a thunderstorm. High 25. Humidex 30. UV index 9 or very high. Tonight..Partly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Clearing late this evening. Fog patches developing after midnight. Low 13. Monday..Sunny. Fog patches dissipating in the morning. High 28. Humidex 33. UV index 8 or very high. Mississauga - Brampton. Today..A mix of sun and cloud. 30 percent chance of showers late this afternoon with risk of a thunderstorm. High 25. Humidex 30. UV index 9 or very high. Tonight..Partly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Clearing late this evening. Fog patches developing after midnight. Low 14. Monday..Sunny. Fog patches dissipating in the morning. High 28. Humidex 33. UV index 9 or very high. Caledon. Today..Increasing cloudiness late this morning. 60 percent chance of showers this afternoon with risk of a thunderstorm. High 26. Humidex 31. UV index 9 or very high. Tonight..Partly cloudy with 60 percent chance of showers early this evening and risk of a thunderstorm. Clearing this evening. Low 12. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 27. Humidex 32. UV index 8 or very high. Vaughan - Richmond Hill - Markham. Today..A mix of sun and cloud. 30 percent chance of showers late this afternoon with risk of a thunderstorm. High 25. Humidex 30. UV index 8 or very high. Tonight..Mainly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Clearing late this evening. Fog patches developing after midnight. Low 13. Monday..Sunny. Fog patches dissipating in the morning. High 29. Humidex 32. UV index 8 or very high. Newmarket - Georgina - Northern York Region. Today..A mix of sun and cloud. 40 percent chance of showers late this afternoon with risk of a thunderstorm. High 26. Humidex 31. UV index 9 or very high. Tonight..Mainly cloudy. 40 percent chance of showers early this evening with risk of a thunderstorm. Clearing late this evening. Low 12. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 29. Humidex 32. UV index 8 or very high. Pickering - Oshawa - Southern Durham Region. Today..A mix of sun and cloud. 30 percent chance of showers late this afternoon with risk of a thunderstorm. High 24 except 19 near Lake Ontario. Humidex 29. UV index 8 or very high. Tonight..Mainly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Clearing near midnight. Fog patches developing after midnight. Low 13. Monday..Sunny. Fog patches dissipating in the morning. High 23. Humidex 26. UV index 8 or very high. Uxbridge - Beaverton - Northern Durham Region. Today..A mix of sun and cloud. 40 percent chance of showers late this afternoon with risk of a thunderstorm. High 26. Humidex 31. UV index 8 or very high. Tonight..Mainly cloudy. 40 percent chance of showers early this evening with risk of a thunderstorm. Clearing late this evening. Low 11. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 28. Humidex 30. UV index 8 or very high. Goderich - Bluewater - Southern Huron County. Today..A mix of sun and cloud. 60 percent chance of showers late this afternoon with risk of a thunderstorm. High 26 except 21 near Lake Huron. Humidex 30. UV index 9 or very high. Tonight..Partly cloudy with 60 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 13. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 30. Humidex 33. UV index 9 or very high. Wingham - Blyth - Northern Huron County. Today..A mix of sun and cloud with 30 percent chance of showers and risk of a thunderstorm. High 25 except 20 near Lake Huron. Humidex 29. UV index 9 or very high. Tonight..Clear. Low 12. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 40 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 29. Humidex 34. UV index 8 or very high. Stratford - Mitchell - Southern Perth County. Today..A mix of sun and cloud. 60 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 60 percent chance of showers early this evening and risk of a thunderstorm. Clearing this evening. Low 13. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 31. Humidex 34. UV index 9 or very high. Listowel - Milverton - Northern Perth County. Today..A mix of sun and cloud. 60 percent chance of showers this afternoon with risk of a thunderstorm. High 26. Humidex 30. UV index 9 or very high. Tonight..Partly cloudy with 60 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 12. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 29. Humidex 32. UV index 9 or very high. Kitchener - Cambridge - Region of Waterloo. Today..A mix of sun and cloud. 60 percent chance of showers this afternoon with risk of a thunderstorm. High 27. Humidex 32. UV index 9 or very high. Tonight..Partly cloudy with 60 percent chance of showers early this evening and risk of a thunderstorm. Clearing this evening. Low 12. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 28. Humidex 33. UV index 9 or very high. Guelph - Erin - Southern Wellington County. Today..Increasing cloudiness near noon. 60 percent chance of showers this afternoon with risk of a thunderstorm. High 26. Humidex 31. UV index 9 or very high. Tonight..Partly cloudy with 60 percent chance of showers early this evening and risk of a thunderstorm. Clearing this evening. Low 12. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 28. Humidex 33. UV index 9 or very high. Mount Forest - Arthur - Northern Wellington County. Today..A mix of sun and cloud. 60 percent chance of showers this afternoon with risk of a thunderstorm. High 26. Humidex 31. UV index 9 or very high. Tonight..Partly cloudy with 60 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 12. Monday..Sunny in the morning then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 28. Humidex 33. UV index 9 or very high. Orangeville - Grand Valley - Southern Dufferin County. Today..Increasing cloudiness late this morning. 60 percent chance of showers this afternoon with risk of a thunderstorm. High 26. Humidex 31. UV index 9 or very high. Tonight..Partly cloudy with 60 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 12. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 27. Humidex 32. UV index 8 or very high. Shelburne - Mansfield - Northern Dufferin County. Today..Increasing cloudiness late this morning. 60 percent chance of showers this afternoon with risk of a thunderstorm. High 26. Humidex 31. UV index 9 or very high. Tonight..Partly cloudy with 60 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 11. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 27. Humidex 32. UV index 8 or very high. Innisfil - New Tecumseth - Angus. Today..Increasing cloudiness late this morning. 60 percent chance of showers this afternoon with risk of a thunderstorm. High 26. Humidex 31. UV index 9 or very high. Tonight..Partly cloudy with 60 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 11. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 29. Humidex 33. UV index 8 or very high. Saugeen Shores - Kincardine - Southern Bruce County. Today..A mix of sun and cloud with 30 percent chance of showers and risk of a thunderstorm. High 24 except 18 near Lake Huron. Humidex 27. UV index 8 or very high. Tonight..Clear. Low 11. Monday..Sunny early in the morning then a mix of sun and cloud with 40 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 26. Humidex 28. UV index 8 or very high. Bruce Peninsula - Sauble Beach - Tobermory. Today..A mix of sun and cloud. 30 percent chance of showers with risk of a thunderstorm. Wind southwest 20 km/h. High 23 except 18 near Lake Huron and Georgian Bay. Humidex 26. UV index 8 or very high. Tonight..Clear. Low 8. Monday..Sunny in the morning then a mix of sun and cloud with 40 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 26. Humidex 28. UV index 8 or very high. Hanover - Dundalk - Southern Grey County. Today..A mix of sun and cloud. 60 percent chance of showers this afternoon with risk of a thunderstorm. High 25. Humidex 29. UV index 9 or very high. Tonight..Partly cloudy with 60 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 11. Monday..Sunny in the morning then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 27. Humidex 31. UV index 8 or very high. Owen Sound - Blue Mountains - Northern Grey County. Today..Becoming a mix of sun and cloud this afternoon with 60 percent chance of showers later this afternoon. Risk of a thunderstorm this afternoon. Wind southwest 20 km/h. High 25. Humidex 26. UV index 6 or high. Tonight..Partly cloudy with 60 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 10. Monday..Sunny in the morning then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 21. UV index 8 or very high. Barrie - Collingwood - Hillsdale. Today..Increasing cloudiness near noon. 60 percent chance of showers this afternoon with risk of a thunderstorm. High 25. Humidex 29. UV index 9 or very high. Tonight..Partly cloudy. 60 percent chance of showers early this evening with risk of a thunderstorm. Clearing this evening. Low 11. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 25. UV index 8 or very high. Midland - Coldwater - Orr Lake. Today..A mix of sun and cloud. 60 percent chance of showers this afternoon with risk of a thunderstorm. High 25. Humidex 28. UV index 9 or very high. Tonight..Partly cloudy with 60 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 10. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 25. UV index 8 or very high. Orillia - Lagoon City - Washago. Today..A mix of sun and cloud. 60 percent chance of showers this afternoon with risk of a thunderstorm. High 25. Humidex 28. UV index 8 or very high. Tonight..Partly cloudy. 60 percent chance of showers early this evening with risk of a thunderstorm. Clearing this evening. Low 10. Monday..Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 25. UV index 8 or very high. Cobourg - Colborne - Western Northumberland County. Today..A mix of sun and cloud. High 24 except 18 near Lake Ontario. Humidex 28. UV index 7 or high. Tonight..A few clouds. Fog patches developing after midnight. Low 12. Monday..Sunny. Fog patches dissipating in the morning. High 25. Humidex 27. UV index 8 or very high. Belleville - Quinte West - Eastern Northumberland County. Today..A mix of sun and cloud. High 24 except 18 near Lake Ontario. Humidex 28. UV index 7 or high. Tonight..A few clouds. Fog patches developing after midnight. Low 12. Monday..Sunny. Fog patches dissipating in the morning. High 25. Humidex 27. UV index 8 or very high. Picton - Sandbanks Park. Today..A mix of sun and cloud. High 23 except 18 near Lake Ontario. Humidex 27. UV index 7 or high. Tonight..A few clouds. Fog patches developing after midnight. Low 11. Monday..Sunny. Fog patches dissipating in the morning. High 25. Humidex 27. UV index 8 or very high. Napanee - Consecon. Today..A mix of sun and cloud. High 23 except 19 near Lake Ontario. Humidex 27. UV index 7 or high. Tonight..A few clouds. Fog patches developing after midnight. Low 11. Monday..Sunny. Fog patches dissipating in the morning. High 25. Humidex 27. UV index 8 or very high. Kingston - Odessa - Frontenac Islands. Today..Mainly sunny. High 23. Humidex 27. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy this evening. Fog patches developing after midnight. Low 12. Monday..Clearing in the morning. Fog patches dissipating in the morning. High 25. Humidex 27. UV index 8 or very high. Lindsay - Southern Kawartha Lakes. Today..A mix of sun and cloud. 30 percent chance of showers late this afternoon with risk of a thunderstorm. High 26. Humidex 30. UV index 8 or very high. Tonight..Mainly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Clearing late this evening. Low 11. Monday..Sunny. High 29. UV index 8 or very high. Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes. Today..Sunny early this afternoon then a mix of sun and cloud with 30 percent chance of showers late this afternoon. Risk of a thunderstorm late this afternoon. High 26. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Clearing late this evening. Low 10. Monday..Sunny. High 29. UV index 8 or very high. Peterborough City - Lakefield - Southern Peterborough County. Today..A mix of sun and cloud. 30 percent chance of showers late this afternoon with risk of a thunderstorm. High 26. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Clearing near midnight. Low 11. Monday..Sunny. High 29. UV index 8 or very high. Apsley - Woodview - Northern Peterborough County. Today..A mix of sun and cloud. 30 percent chance of showers late this afternoon with risk of a thunderstorm. High 26. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Clearing near midnight. Low 10. Monday..Sunny. High 29. UV index 8 or very high. Stirling - Tweed - Madoc. Today..Mainly cloudy. Clearing late this afternoon. High 25. Humidex 28. UV index 7 or high. Tonight..Clear. Fog patches developing after midnight. Low 11. Monday..Sunny. Fog patches dissipating in the morning. High 28. UV index 8 or very high. Tamworth - Sydenham - South Frontenac. Today..Mainly sunny. High 25. Humidex 28. UV index 8 or very high. Tonight..A few clouds. Fog patches developing after midnight. Low 12. Monday..Clearing. Fog patches dissipating in the morning. High 29. UV index 8 or very high. Kaladar - Bannockburn - Bon Echo Park. Today..Mainly cloudy. 30 percent chance of showers late this afternoon with risk of a thunderstorm. High 26. Humidex 29. UV index 7 or high. Tonight..Partly cloudy with 30 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 10. Monday..Sunny. High 29. UV index 8 or very high. Bancroft - Hastings Highlands - Denbigh. Today..A mix of sun and cloud. 30 percent chance of showers late this afternoon with risk of a thunderstorm. High 27. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Clearing near midnight. Low 9. Monday..Sunny. High 29. UV index 8 or very high. Gananoque - Mallorytown. Today..Mainly sunny. High 26. Humidex 29. UV index 8 or very high. Tonight..A few clouds. Fog patches developing after midnight. Low 14. Monday..Clearing in the morning. Fog patches dissipating in the morning. High 28. Humidex 33. UV index 8 or very high. Brockville - Prescott. Today..A mix of sun and cloud. High 26. Humidex 29. UV index 8 or very high. Tonight..Clear. Fog patches developing after midnight. Low 14. Monday..Sunny. Fog patches dissipating in the morning. High 29. Humidex 33. UV index 8 or very high. Westport - Charleston Lake. Today..A mix of sun and cloud. Clearing late this afternoon. High 26. Humidex 29. UV index 8 or very high. Tonight..Clear. Fog patches developing after midnight. Low 13. Monday..Sunny. Fog patches dissipating in the morning. High 30. Humidex 33. UV index 8 or very high. Merrickville-Wolford - Kemptville. Today..A mix of sun and cloud. High 27. Humidex 30. UV index 8 or very high. Tonight..A few clouds. Fog patches developing after midnight. Low 14. Monday..Sunny. Fog patches dissipating in the morning. High 30. Humidex 33. UV index 8 or very high. Ottawa North - Kanata - Orl‚ans. Today..A mix of sun and cloud. High 27. Humidex 30. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy late this evening. Low 15. Monday..Sunny. High 30. Humidex 32. UV index 8 or very high. Ottawa South - Richmond - Metcalfe. Today..A mix of sun and cloud. High 27. Humidex 30. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy late this evening. Low 15. Monday..Sunny. High 30. Humidex 32. UV index 8 or very high. Gatineau. Today..Mainly sunny. High 27. Humidex 31. UV index 7 or high. Tonight..Clear. Becoming partly cloudy near midnight. Low 15. Monday..Sunny. High 30. Humidex 31. UV index 8 or very high. Prescott and Russell. Today..Mainly sunny. High 27. Humidex 32. UV index 8 or very high. Tonight..A few clouds. Low 15. Monday..Sunny. High 30. Humidex 33. UV index 8 or very high. Morrisburg - Long Sault. Today..A mix of sun and cloud. High 27. Humidex 30. UV index 8 or very high. Tonight..A few clouds. Low 15. Monday..Sunny. High 29. Humidex 34. UV index 8 or very high. Cornwall - Lancaster. Today..Mainly sunny. High 27. Humidex 30. UV index 8 or very high. Tonight..Clear. Low 15. Monday..Sunny. High 29. Humidex 34. UV index 8 or very high. Winchester - Newington. Today..Mainly sunny. High 27. Humidex 30. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy near midnight. Low 15. Monday..Sunny. High 29. Humidex 34. UV index 8 or very high. Maxville - Alexandria. Today..Mainly sunny. High 27. Humidex 30. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy near midnight. Low 15. Monday..Sunny. High 29. Humidex 34. UV index 8 or very high. Plevna - Sharbot Lake - Western Lanark County. Today..Clearing this afternoon. High 26. Humidex 29. UV index 6 or high. Tonight..Clear. Low 11. Monday..Sunny. High 30. Humidex 32. UV index 8 or very high. Smiths Falls - Perth - Eastern Lanark County. Today..A mix of sun and cloud. Clearing late this afternoon. High 27. Humidex 30. UV index 8 or very high. Tonight..Clear. Low 13. Monday..Sunny. High 30. Humidex 32. UV index 8 or very high. Port Carling - Port Severn. Today..A mix of sun and cloud. 30 percent chance of showers this afternoon with risk of a thunderstorm. High 25 except 19 near Georgian Bay. Humidex 29. UV index 9 or very high. Tonight..Partly cloudy with 30 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 9. Monday..Sunny. High 27. Humidex 28. UV index 8 or very high. Bracebridge - Gravenhurst. Today..A mix of sun and cloud. 30 percent chance of showers this afternoon with risk of a thunderstorm. High 26. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy with 30 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 9. Monday..Sunny. High 27. UV index 8 or very high. Town of Parry Sound - Rosseau - Killbear Park. Today..A mix of sun and cloud. 30 percent chance of showers this afternoon with risk of a thunderstorm. High 24 except 19 near Georgian Bay. Humidex 28. UV index 8 or very high. Tonight..Partly cloudy with 30 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 9. Monday..Sunny. High 27. UV index 8 or very high. Huntsville - Baysville. Today..Increasing cloudiness near noon. 30 percent chance of showers this afternoon with risk of a thunderstorm. High 26. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy with 30 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 8. Monday..Sunny. High 27. UV index 8 or very high. Haliburton - Minden - Southern Haliburton County. Today..Increasing cloudiness. 30 percent chance of showers late this afternoon with risk of a thunderstorm. High 26. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Clearing this evening. Low 9. Monday..Sunny. High 27. Humidex 28. UV index 8 or very high. Oxtongue Lake - Fort Irwin - Northern Haliburton County. Today..Sunny early this afternoon then a mix of sun and cloud with 30 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 27. Humidex 31. UV index 8 or very high. Tonight..Partly cloudy with 30 percent chance of showers early this evening and risk of a thunderstorm. Clearing this evening. Low 8. Monday..Sunny. High 27. Humidex 28. UV index 8 or very high. Barry's Bay - Killaloe. Today..A mix of sun and cloud. 30 percent chance of showers late this afternoon with risk of a thunderstorm. High 27. Humidex 29. UV index 8 or very high. Tonight..Partly cloudy with 30 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 10. Monday..Sunny. High 29. UV index 8 or very high. Renfrew - Arnprior - Calabogie. Today..A mix of sun and cloud. 30 percent chance of showers late this afternoon with risk of a thunderstorm. High 27. Humidex 29. UV index 7 or high. Tonight..Partly cloudy with 30 percent chance of showers early this evening. Becoming clear late this evening and overnight. Risk of a thunderstorm early this evening. Low 12. Monday..Sunny. High 29. UV index 9 or very high. Petawawa - Pembroke - Cobden. Today..A mix of sun and cloud. 30 percent chance of showers late this afternoon with risk of a thunderstorm. High 27. Humidex 29. UV index 8 or very high. Tonight..Partly cloudy with 30 percent chance of showers early this evening then clear. Risk of a thunderstorm early this evening. Low 11. Monday..Sunny. High 29. UV index 8 or very high. Western Algonquin Park - Lake of Two Rivers. Today..Sunny early this afternoon then a mix of sun and cloud with 30 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 27. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy with 30 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 8. Monday..Sunny. High 27. UV index 8 or very high. Deep River - Whitney - Eastern Algonquin Park. Today..Sunny early this afternoon then a mix of sun and cloud with 30 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 27. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy with 30 percent chance of showers early this evening and risk of a thunderstorm. Clearing this evening. Low 8. Monday..Sunny. High 27. UV index 8 or very high. Bayfield Inlet - Dunchurch. Today..A mix of sun and cloud. 30 percent chance of showers this afternoon with risk of a thunderstorm. High 24 except 19 near Georgian Bay. Humidex 28. UV index 8 or very high. Tonight..Partly cloudy with 30 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 10. Monday..Sunny. High 28. UV index 8 or very high. South River - Burk's Falls. Today..A mix of sun and cloud. 30 percent chance of showers this afternoon with risk of a thunderstorm. High 26. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy with 30 percent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 8. Monday..Sunny. High 28. UV index 8 or very high. End $$$$^^ --- up 5 days, 18 hours, 55 minutes * Origin: Northern Realms (1:229/664) .