Subj : [1/2] Southern Ontario Weather To : All From : Northern Realms Date : Sat Aug 16 2025 11:05:00 FPCN11 CWTO 161500 Forecasts for Southern Ontario and the National Capital Region issued by Environment Canada at 11:00 a.m. EDT Saturday 16 August 2025 for today and Sunday. The next scheduled forecast will be issued at 3:30 p.m. EDT. City of Toronto. Today..Sunny. High 31. Humidex 36. UV index 8 or very high. Tonight..Clear. Increasing cloudiness after midnight then 60 percent chance of showers overnight. Risk of a thunderstorm overnight. Low 20. Sunday..A mix of sun and cloud. 40 percent chance of showers in the morning and early in the afternoon. Wind becoming north 20 km/h late in the morning. High 25. Humidex 33. UV index 8 or very high. Windsor - Leamington - Essex County. Today..Sunny near noon then a mix of sun and cloud with 30 percent chance of showers. Risk of a thunderstorm this afternoon. High 32. Humidex 41. UV index 9 or very high. Tonight..Partly cloudy with 30 percent chance of showers and risk of a thunderstorm. Wind becoming north 20 km/h late this evening. Low 22. Sunday..Cloudy. 30 percent chance of showers early in the morning with risk of a thunderstorm. Clearing late in the afternoon. Wind becoming north 30 km/h late in the afternoon. High 25. Humidex 33. UV index 8 or very high. Chatham-Kent - Rondeau Park. Today..Sunny near noon then a mix of sun and cloud with 30 percent chance of showers. Risk of a thunderstorm this afternoon. High 32. Humidex 40. UV index 9 or very high. Tonight..Partly cloudy with 30 percent chance of showers and risk of a thunderstorm. Wind becoming north 30 km/h late this evening then light after midnight. Low 20. Sunday..Cloudy with 30 percent chance of showers early in the morning and risk of a thunderstorm. Clearing late in the morning. Wind becoming north 30 km/h late in the afternoon. High 26. Humidex 34. UV index 9 or very high. Sarnia - Petrolia - Western Lambton County. Today..Sunny near noon then a mix of sun and cloud with 30 percent chance of showers. Risk of a thunderstorm this afternoon. High 33. Humidex 40. UV index 9 or very high. Tonight..Mainly cloudy with 30 percent chance of showers and risk of a thunderstorm. Wind becoming northwest 30 km/h gusting to 50 after midnight. Low 20. Sunday..Cloudy with 30 percent chance of showers early in the morning and risk of a thunderstorm. Clearing late in the morning. Wind becoming north 30 km/h late in the morning. High 23. Humidex 31. UV index 9 or very high. Watford - Pinery Park - Eastern Lambton County. Today..Sunny near noon then a mix of sun and cloud with 30 percent chance of showers. Risk of a thunderstorm this afternoon. High 32. Humidex 39. UV index 9 or very high. Tonight..Partly cloudy with 30 percent chance of showers and risk of a thunderstorm. Wind becoming north 20 km/h gusting to 40 after midnight. Low 20. Sunday..Cloudy with 30 percent chance of showers early in the morning and risk of a thunderstorm. Clearing late in the morning. Wind becoming north 30 km/h late in the morning. High 23. Humidex 31. UV index 9 or very high. Rodney - Shedden - Western Elgin County. Today..Sunny early this afternoon then a mix of sun and cloud with 40 percent chance of showers late this afternoon. Risk of a thunderstorm late this afternoon. High 31. Humidex 36. UV index 9 or very high. Tonight..Partly cloudy with 40 percent chance of showers and risk of a thunderstorm. Wind becoming northwest 20 km/h late this evening. Low 20. Sunday..Mainly cloudy with 30 percent chance of showers in the morning and risk of a thunderstorm. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 28. Humidex 36. UV index 9 or very high. St. Thomas - Aylmer - Eastern Elgin County. Today..Sunny early this afternoon then a mix of sun and cloud with 40 percent chance of showers late this afternoon. Risk of a thunderstorm late this afternoon. High 31. Humidex 36. UV index 9 or very high. Tonight..Partly cloudy with 40 percent chance of showers and risk of a thunderstorm. Low 20. Sunday..Mainly cloudy with 30 percent chance of showers in the morning and risk of a thunderstorm. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 28. Humidex 36. UV index 9 or very high. Strathroy - Komoka - Western Middlesex County. Today..Sunny early this afternoon then a mix of sun and cloud with 40 percent chance of showers late this afternoon. Risk of a thunderstorm late this afternoon. High 32. Humidex 37. UV index 9 or very high. Tonight..Partly cloudy with 40 percent chance of showers and risk of a thunderstorm. Wind becoming northwest 20 km/h before morning. Low 19. Sunday..Mainly cloudy with 30 percent chance of showers in the morning and risk of a thunderstorm. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 27. Humidex 34. UV index 9 or very high. London - Parkhill - Eastern Middlesex County. Today..Sunny early this afternoon then a mix of sun and cloud with 40 percent chance of showers late this afternoon. Risk of a thunderstorm late this afternoon. High 32. Humidex 37. UV index 9 or very high. Tonight..Partly cloudy with 40 percent chance of showers and risk of a thunderstorm. Low 19. Sunday..Mainly cloudy with 30 percent chance of showers in the morning and risk of a thunderstorm. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 27. Humidex 34. UV index 9 or very high. Simcoe - Delhi - Norfolk. Today..Sunny. High 31. Humidex 36. UV index 8 or very high. Tonight..Clear. Increasing cloudiness near midnight then 40 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind becoming north 20 km/h gusting to 40 after midnight. Low 20. Sunday..A mix of sun and cloud. 30 percent chance of showers in the morning and early in the afternoon with risk of a thunderstorm. High 28. Humidex 36. UV index 9 or very high. Dunnville - Caledonia - Haldimand. Today..Sunny. High 32. Humidex 37. UV index 8 or very high. Tonight..Clear. Increasing cloudiness near midnight then 40 percent chance of showers overnight. Risk of a thunderstorm overnight. Low 19. Sunday..A mix of sun and cloud. 30 percent chance of showers in the morning and early in the afternoon with risk of a thunderstorm. High 28. Humidex 36. UV index 9 or very high. Woodstock - Tillsonburg - Oxford County. Today..Sunny. High 33. Humidex 38. UV index 8 or very high. Tonight..Clear early this evening then partly cloudy with 40 percent chance of showers. Risk of a thunderstorm. Wind becoming northwest 20 km/h after midnight. Low 20. Sunday..A mix of sun and cloud. 30 percent chance of showers in the morning and early in the afternoon with risk of a thunderstorm. Wind becoming north 20 km/h late in the morning. High 28. Humidex 35. UV index 9 or very high. Brantford - County of Brant. Today..Sunny. High 33. Humidex 38. UV index 8 or very high. Tonight..Clear early this evening then partly cloudy with 40 percent chance of showers. Risk of a thunderstorm. Low 20. Sunday..A mix of sun and cloud. 30 percent chance of showers in the morning and early in the afternoon with risk of a thunderstorm. Wind becoming north 20 km/h late in the morning. High 28. Humidex 35. UV index 9 or very high. Niagara Falls - Welland - Southern Niagara Region. Today..Sunny. High 31. Humidex 38. UV index 8 or very high. Tonight..Clear. Increasing cloudiness after midnight then 40 percent chance of showers overnight. Risk of a thunderstorm overnight. Low 19. Sunday..Cloudy. 30 percent chance of showers in the morning and early in the afternoon. Becoming a mix of sun and cloud late in the afternoon. Risk of a thunderstorm in the morning and early in the afternoon. Wind becoming north 20 km/h late in the afternoon. High 26. Humidex 35. UV index 3 or moderate. St. Catharines - Grimsby - Northern Niagara Region. Today..Sunny. High 32. Humidex 39. UV index 8 or very high. Tonight..Clear. Increasing cloudiness after midnight then 40 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind becoming west 20 km/h after midnight. Low 19. Sunday..Cloudy. 30 percent chance of showers in the morning and early in the afternoon. Becoming a mix of sun and cloud late in the afternoon. Risk of a thunderstorm in the morning and early in the afternoon. Wind becoming north 20 km/h late in the afternoon. High 26. Humidex 35. UV index 3 or moderate. City of Hamilton. Today..Sunny. High 32. Humidex 38. UV index 8 or very high. Tonight..Clear. Increasing cloudiness after midnight then 60 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind becoming northwest 20 km/h gusting to 40 after midnight. Low 19. Sunday..A mix of sun and cloud. 40 percent chance of showers in the morning and early in the afternoon. Wind becoming northeast 20 km/h late in the afternoon. High 26. Humidex 34. UV index 9 or very high. Burlington - Oakville. Today..Sunny. Wind becoming southwest 20 km/h late this afternoon. High 32. Humidex 37. UV index 8 or very high. Tonight..Clear. Increasing cloudiness after midnight then 60 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind southwest 20 km/h becoming light late this evening. Low 20. Sunday..A mix of sun and cloud. 40 percent chance of showers in the morning and early in the afternoon. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 26. Humidex 34. UV index 8 or very high. Halton Hills - Milton. Today..Mainly sunny. High 32. Humidex 37. UV index 8 or very high. Tonight..Clear. Increasing cloudiness after midnight then 60 percent chance of showers overnight. Risk of a thunderstorm overnight. Low 20. Sunday..A mix of sun and cloud. 40 percent chance of showers in the morning and early in the afternoon. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 26. Humidex 34. UV index 8 or very high. Mississauga - Brampton. Today..Mainly sunny. High 31. Humidex 36. UV index 8 or very high. Tonight..Clear. Increasing cloudiness after midnight then 60 percent chance of showers overnight. Risk of a thunderstorm overnight. Low 20. Sunday..A mix of sun and cloud. 40 percent chance of showers in the morning and early in the afternoon. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 26. Humidex 34. UV index 8 or very high. Caledon. Today..A mix of sun and cloud. High 32. Humidex 37. UV index 8 or very high. Tonight..Clear. Increasing cloudiness near midnight then 60 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind becoming west 20 km/h late this evening. Low 20. Sunday..A mix of sun and cloud. 40 percent chance of showers in the morning and early in the afternoon. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 26. Humidex 34. UV index 8 or very high. Vaughan - Richmond Hill - Markham. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 32. Humidex 37. UV index 8 or very high. Tonight..Clear. Increasing cloudiness after midnight then 60 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind becoming northwest 20 km/h after midnight. Low 20. Sunday..Cloudy with 40 percent chance of showers in the morning and early in the afternoon. Clearing late in the afternoon. Wind becoming north 20 km/h in the morning. High 23. Humidex 31. UV index 3 or moderate. Newmarket - Georgina - Northern York Region. Today..A mix of sun and cloud. High 32. Humidex 37. UV index 8 or very high. Tonight..A few clouds. Increasing cloudiness near midnight then 60 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind becoming northwest 20 km/h after midnight. Low 20. Sunday..Cloudy with 40 percent chance of showers in the morning and early in the afternoon. Clearing late in the afternoon. Wind becoming north 20 km/h in the morning. High 23. Humidex 31. UV index 3 or moderate. Pickering - Oshawa - Southern Durham Region. Today..Sunny. High 31. Humidex 36. UV index 8 or very high. Tonight..Clear. Increasing cloudiness after midnight then 60 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind becoming northwest 20 km/h after midnight. Low 20. Sunday..Cloudy with 40 percent chance of showers in the morning and early in the afternoon. Clearing late in the afternoon. Wind becoming north 20 km/h in the morning. High 23. Humidex 31. UV index 3 or moderate. Uxbridge - Beaverton - Northern Durham Region. Today..A mix of sun and cloud. High 33. Humidex 38. UV index 8 or very high. Tonight..A few clouds. Increasing cloudiness late this evening then 60 percent chance of showers overnight. Risk of a thunderstorm overnight. Low 20. Sunday..Cloudy with 40 percent chance of showers in the morning and early in the afternoon. Clearing late in the afternoon. Wind becoming north 20 km/h in the morning. High 23. Humidex 31. UV index 3 or moderate. Goderich - Bluewater - Southern Huron County. Today..Sunny early this afternoon then a mix of sun and cloud with 40 percent chance of showers late this afternoon. Risk of a thunderstorm late this afternoon. High 32. Humidex 37. UV index 8 or very high. Tonight..Mainly cloudy with 40 percent chance of showers this evening. A few showers beginning late this evening. Risk of a thunderstorm this evening and overnight. Wind northeast 40 km/h gusting to 60 becoming west 20 late this evening then north 30 gusting to 50 before morning. Low 19. Sunday..Mainly cloudy. 30 percent chance of showers in the morning with risk of a thunderstorm. Clearing late in the afternoon. Wind north 30 km/h. High 24. Humidex 31. UV index 8 or very high. Wingham - Blyth - Northern Huron County. Today..Sunny early this afternoon then a mix of sun and cloud with 40 percent chance of showers late this afternoon. Risk of a thunderstorm late this afternoon. High 31. Humidex 37. UV index 8 or very high. Tonight..Mainly cloudy with 40 percent chance of showers this evening. A few showers beginning late this evening. Risk of a thunderstorm this evening and overnight. Wind west 20 km/h becoming north 20 after midnight. Low 19. Sunday..Mainly cloudy. 30 percent chance of showers in the morning with risk of a thunderstorm. Clearing late in the afternoon. Wind becoming north 30 km/h late in the morning. High 24. Humidex 31. UV index 8 or very high. Stratford - Mitchell - Southern Perth County. Today..Sunny early this afternoon then a mix of sun and cloud with 40 percent chance of showers late this afternoon. Risk of a thunderstorm late this afternoon. High 32. Humidex 37. UV index 8 or very high. Tonight..Mainly cloudy with 40 percent chance of showers this evening. A few showers beginning late this evening. Risk of a thunderstorm this evening and overnight. Wind becoming northwest 20 km/h before morning. Low 19. Sunday..Mainly cloudy. 30 percent chance of showers in the morning with risk of a thunderstorm. Clearing late in the afternoon. Wind becoming north 30 km/h late in the morning. High 24. Humidex 31. UV index 8 or very high. Listowel - Milverton - Northern Perth County. Today..Sunny early this afternoon then a mix of sun and cloud with 40 percent chance of showers late this afternoon. Risk of a thunderstorm late this afternoon. High 32. Humidex 37. UV index 8 or very high. Tonight..Mainly cloudy with 40 percent chance of showers this evening. A few showers beginning late this evening. Risk of a thunderstorm this evening and overnight. Low 19. Sunday..Mainly cloudy. 30 percent chance of showers in the morning with risk of a thunderstorm. Clearing late in the afternoon. Wind becoming north 30 km/h late in the morning. High 23. Humidex 31. UV index 7 or high. Kitchener - Cambridge - Region of Waterloo. Today..Sunny. High 33. Humidex 38. UV index 8 or very high. Tonight..Clear early this evening then partly cloudy with 40 percent chance of showers. Risk of a thunderstorm. Wind becoming northwest 20 km/h before morning. Low 18. Sunday..A mix of sun and cloud. 30 percent chance of showers in the morning and early in the afternoon with risk of a thunderstorm. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 26. Humidex 33. UV index 9 or very high. Guelph - Erin - Southern Wellington County. Today..Sunny. High 33. Humidex 38. UV index 8 or very high. Tonight..Clear. Increasing cloudiness near midnight then 60 percent chance of showers overnight. Risk of a thunderstorm overnight. Low 18. Sunday..A mix of sun and cloud. 40 percent chance of showers in the morning and early in the afternoon. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 26. Humidex 33. UV index 9 or very high. Mount Forest - Arthur - Northern Wellington County. Today..Sunny early this afternoon then a mix of sun and cloud with 40 percent chance of showers late this afternoon. Risk of a thunderstorm late this afternoon. High 33. Humidex 38. UV index 8 or very high. Tonight..Mainly cloudy with 40 percent chance of showers this evening. A few showers beginning late this evening. Risk of a thunderstorm this evening and overnight. Wind west 20 km/h becoming light late this evening. Low 18. Sunday..A mix of sun and cloud. 30 percent chance of showers in the morning with risk of a thunderstorm. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 26. Humidex 33. UV index 8 or very high. Orangeville - Grand Valley - Southern Dufferin County. Today..A mix of sun and cloud. High 31. Humidex 36. UV index 8 or very high. Tonight..Clear. Increasing cloudiness late this evening then showers. Risk of a thunderstorm overnight. Wind becoming west 20 km/h late this evening. Low 19. Sunday..Mainly cloudy with 40 percent chance of showers in the morning. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 22. Humidex 28. UV index 8 or very high. Shelburne - Mansfield - Northern Dufferin County. Today..Mainly sunny. High 31. Humidex 36. UV index 8 or very high. Tonight..Clear. Increasing cloudiness late this evening then showers. Risk of a thunderstorm overnight. Wind becoming west 20 km/h after midnight. Low 19. Sunday..Mainly cloudy with 40 percent chance of showers in the morning. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 22. Humidex 28. UV index 8 or very high. Innisfil - New Tecumseth - Angus. Today..A mix of sun and cloud. High 33. Humidex 38. UV index 8 or very high. Tonight..A few clouds. Increasing cloudiness late this evening then showers. Risk of a thunderstorm overnight. Low 19. Sunday..Mainly cloudy with 40 percent chance of showers in the morning. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 22. Humidex 28. UV index 8 or very high. Saugeen Shores - Kincardine - Southern Bruce County. Today..Sunny near noon then a mix of sun and cloud with 40 percent chance of showers early this afternoon. High 29. Humidex 34. UV index 8 or very high. Tonight..Increasing cloudiness. 40 percent chance of showers this evening. Showers beginning late this evening. Risk of a thunderstorm this evening and after midnight. Wind south 20 km/h gusting to 40 becoming light late this evening. Wind becoming north 20 gusting to 40 after midnight. Low 21. Sunday..Cloudy with 30 percent chance of showers in the morning. Clearing in the afternoon. Wind becoming north 30 km/h late in the morning. High 20. Humidex 28. UV index 7 or high. Bruce Peninsula - Sauble Beach - Tobermory. Today..A mix of sun and cloud with 60 percent chance of showers early this afternoon. Becoming sunny this afternoon. Wind southwest 20 km/h. High 28. Humidex 35. UV index 8 or very high. Tonight..Cloudy. 40 percent chance of showers this evening. Showers beginning late this evening. Risk of a thunderstorm this evening and after midnight. Wind west 20 km/h becoming light this evening. Wind becoming north 30 gusting to 50 after midnight. Low 16. Sunday..Mainly cloudy with 30 percent chance of showers in the morning. Clearing in the afternoon. Wind northeast 40 km/h gusting to 60. High 20. UV index 7 or high. Hanover - Dundalk - Southern Grey County. Today..Sunny near noon then a mix of sun and cloud with 40 percent chance of showers early this afternoon. Wind becoming southwest 20 km/h late this afternoon. High 30. Humidex 35. UV index 8 or very high. Tonight..Increasing cloudiness. 40 percent chance of showers this evening. Showers beginning late this evening. Risk of a thunderstorm this evening and after midnight. Wind west 30 km/h gusting to 50 becoming light late this evening. Low 19. Sunday..Mainly cloudy with 30 percent chance of showers in the morning. Clearing in the afternoon. Wind becoming north 20 km/h in the morning. High 18. UV index 8 or very high. Owen Sound - Blue Mountains - Northern Grey County. Today..Sunny near noon then a mix of sun and cloud with 40 percent chance of showers early this afternoon. Wind southwest 20 km/h. High 30. Humidex 37. UV index 8 or very high. Tonight..Increasing cloudiness. 40 percent chance of showers this evening. Showers beginning late this evening. Risk of a thunderstorm this evening and after midnight. Wind becoming north 30 km/h gusting to 50 before morning. Low 17. Sunday..Cloudy with 30 percent chance of showers in the morning. Clearing in the afternoon. Wind becoming north 20 km/h in the morning. High 20. UV index 6 or high. Barrie - Collingwood - Hillsdale. Today..A mix of sun and cloud. High 32. Humidex 37. UV index 8 or very high. Tonight..A few clouds. Increasing cloudiness late this evening then showers. Risk of a thunderstorm overnight. Low 18. Sunday..Cloudy with 40 percent chance of showers in the morning. Clearing in the afternoon. Wind north 20 km/h becoming light in the afternoon. High 22. Humidex 25. UV index 3 or moderate. Midland - Coldwater - Orr Lake. Today..Mainly sunny. Wind becoming west 20 km/h this afternoon. High 31. Humidex 36. UV index 8 or very high. Tonight..A few clouds. Increasing cloudiness late this evening then showers. Risk of a thunderstorm overnight. Wind becoming north 30 km/h late this evening. Low 18. Sunday..Cloudy with 40 percent chance of showers in the morning. Clearing in the afternoon. Wind north 20 km/h becoming light in the afternoon. High 22. Humidex 25. UV index 3 or moderate. Orillia - Lagoon City - Washago. Today..A mix of sun and cloud. High 32. Humidex 38. UV index 8 or very high. Tonight..Mainly cloudy. Showers beginning near midnight. Risk of a thunderstorm overnight. Wind becoming west 40 km/h gusting to 60 after midnight. Low 18. Sunday..Cloudy with 40 percent chance of showers in the morning. Clearing in the afternoon. Wind north 20 km/h becoming light in the afternoon. High 22. Humidex 25. UV index 3 or moderate. Cobourg - Colborne - Western Northumberland County. Today..Sunny. High 31. Humidex 36. UV index 8 or very high. Tonight..Increasing cloudiness near midnight. Low 20. Sunday..Cloudy. 40 percent chance of showers late in the morning and in the afternoon with risk of a thunderstorm. Wind becoming north 20 km/h late in the morning. High 26. Humidex 32. UV index 3 or moderate. Belleville - Quinte West - Eastern Northumberland County. Today..Sunny. High 31. Humidex 36. UV index 8 or very high. Tonight..Increasing cloudiness near midnight. Low 20. Sunday..Cloudy. 40 percent chance of showers late in the morning and in the afternoon with risk of a thunderstorm. Wind becoming north 20 km/h late in the morning. High 26. Humidex 32. UV index 3 or moderate. Picton - Sandbanks Park. Today..Sunny. High 31. Humidex 36. UV index 8 or very high. Tonight..Increasing cloudiness near midnight. Low 20. Sunday..Cloudy. 40 percent chance of showers late in the morning and in the afternoon. Wind becoming north 20 km/h in the afternoon. High 26. Humidex 32. UV index 3 or moderate. Napanee - Consecon. Today..Sunny. High 32. Humidex 37. UV index 8 or very high. Tonight..Increasing cloudiness near midnight. Low 20. Sunday..Cloudy. 40 percent chance of showers late in the morning and in the afternoon. Wind becoming north 20 km/h in the afternoon. High 26. Humidex 32. UV index 3 or moderate. Kingston - Odessa - Frontenac Islands. Today..Sunny. High 32. Humidex 37. UV index 8 or very high. Tonight..Clear. Increasing cloudiness after midnight. Low 20. Sunday..Cloudy. 40 percent chance of showers late in the morning and in the afternoon. Wind becoming north 20 km/h in the afternoon. High 26. Humidex 32. UV index 3 or moderate. Lindsay - Southern Kawartha Lakes. Today..A mix of sun and cloud. High 32. Humidex 38. UV index 8 or very high. Tonight..Partly cloudy. Becoming cloudy after midnight with 60 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind becoming northwest 20 km/h after midnight. Low 20. Sunday..Cloudy with 40 percent chance of showers in the morning and early in the afternoon. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 22. Humidex 29. UV index 3 or moderate. Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes. Today..A mix of sun and cloud. Wind becoming west 20 km/h this afternoon. High 32. Humidex 38. UV index 8 or very high. Tonight..Mainly cloudy. Showers beginning near midnight. Risk of a thunderstorm overnight. Low 20. Sunday..Cloudy with 40 percent chance of showers in the morning. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 22. Humidex 29. UV index 3 or moderate. Peterborough City - Lakefield - Southern Peterborough County. Today..Mainly sunny. High 32. Humidex 37. UV index 8 or very high. Tonight..A few clouds. Increasing cloudiness after midnight then 60 percent chance of showers overnight. Risk of a thunderstorm overnight. Low 18. Sunday..Cloudy with 40 percent chance of showers in the morning and early in the afternoon. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 22. Humidex 26. UV index 3 or moderate. Apsley - Woodview - Northern Peterborough County. Today..A mix of sun and cloud. Wind becoming southwest 20 km/h this afternoon. High 32. Humidex 37. UV index 8 or very high. Tonight..Mainly cloudy. 60 percent chance of showers overnight. Low 18. Sunday..Cloudy with 40 percent chance of showers in the morning and early in the afternoon. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 22. Humidex 26. UV index 3 or moderate. Stirling - Tweed - Madoc. Today..Mainly sunny. High 33. Humidex 38. UV index 8 or very high. Tonight..Partly cloudy. Becoming cloudy after midnight. Low 20. Sunday..Cloudy. 40 percent chance of showers late in the morning and in the afternoon with risk of a thunderstorm. High 24. Humidex 31. UV index 3 or moderate. Tamworth - Sydenham - South Frontenac. Today..Sunny. High 33. Humidex 38. UV index 8 or very high. Tonight..Clear. Increasing cloudiness near midnight. Low 20. Sunday..Cloudy. 40 percent chance of showers late in the morning and in the afternoon. High 24. Humidex 31. UV index 3 or moderate. Kaladar - Bannockburn - Bon Echo Park. Today..Mainly sunny. Wind becoming southwest 20 km/h this afternoon. High 32. Humidex 37. UV index 8 or very high. Tonight..Partly cloudy. Becoming cloudy after midnight with 60 percent chance of showers overnight. Low 18. Sunday..Cloudy with 40 percent chance of showers in the morning and early in the afternoon. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 19. UV index 3 or moderate. Bancroft - Hastings Highlands - Denbigh. Today..A mix of sun and cloud. Wind southwest 20 km/h. High 32. Humidex 37. UV index 8 or very high. Tonight..Partly cloudy. 60 percent chance of showers overnight. Wind west 20 km/h becoming light this evening. Low 18. Sunday..Cloudy with 40 percent chance of showers in the morning and early in the afternoon. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 19. UV index 3 or moderate. Gananoque - Mallorytown. Today..Sunny. High 32. Humidex 35. UV index 8 or very high. Tonight..Clear. Increasing cloudiness late this evening. Low 19. Sunday..Cloudy. 40 percent chance of showers late in the morning and in the afternoon. High 25. Humidex 32. UV index 3 or moderate. Brockville - Prescott. Today..Sunny. High 32. Humidex 35. UV index 8 or very high. Tonight..Increasing cloudiness. Low 19. Sunday..Cloudy. 40 percent chance of showers late in the morning and in the afternoon. High 25. Humidex 32. UV index 3 or moderate. Westport - Charleston Lake. Today..Sunny. Wind becoming southwest 20 km/h late this afternoon. High 32. Humidex 35. UV index 8 or very high. Tonight..Increasing cloudiness. Wind southwest 20 km/h becoming light this evening. Low 19. Sunday..Cloudy. 40 percent chance of showers late in the morning and in the afternoon. High 25. Humidex 32. UV index 3 or moderate. Merrickville-Wolford - Kemptville. Today..Sunny. Wind southwest 20 km/h. High 32. Humidex 37. UV index 8 or very high. Tonight..Increasing cloudiness this evening. Wind southwest 20 km/h becoming light late this evening. Low 19. Sunday..Cloudy. 40 percent chance of showers late in the morning and in the afternoon. High 21. Humidex 28. UV index 3 or moderate. Ottawa North - Kanata - Orl‚ans. Today..Mainly sunny. Wind south 20 km/h. High 32. Humidex 37. UV index 8 or very high. Tonight..Partly cloudy. 40 percent chance of showers before morning. Low 18. Sunday..Cloudy with 40 percent chance of showers. Wind becoming north 20 km/h late in the morning. High 21. UV index 3 or moderate. Ottawa South - Richmond - Metcalfe. Today..Mainly sunny. Wind south 20 km/h. High 32. Humidex 37. UV index 8 or very high. Tonight..Partly cloudy. 40 percent chance of showers before morning. Low 18. Sunday..Cloudy with 40 percent chance of showers. Wind becoming north 20 km/h late in the morning. High 21. UV index 3 or moderate. Gatineau. Today..Sunny. Wind south 20 km/h. High 32. Humidex 37. UV index 8 or very high. Tonight..Partly cloudy. 40 percent chance of showers before morning. Low 18. Sunday..Cloudy with 40 percent chance of showers. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 22. UV index 3 or moderate. Prescott and Russell. Today..Sunny. Wind southwest 20 km/h. High 32. Humidex 36. UV index 8 or very high. Tonight..Partly cloudy. Becoming cloudy before morning with 40 percent chance of showers. Low 19. Sunday..Cloudy with 40 percent chance of showers. Wind becoming north 20 km/h late in the morning. High 22. Humidex 29. UV index 3 or moderate. Morrisburg - Long Sault. Today..Sunny. High 32. Humidex 36. UV index 8 or very high. Tonight..Increasing cloudiness. 40 percent chance of showers before morning. Low 20. Sunday..Cloudy with 40 percent chance of showers. Wind becoming north 20 km/h late in the morning. High 24. Humidex 31. UV index 3 or moderate. Continued in next message... --- up 5 days, 3 hours, 46 minutes * Origin: Northern Realms (1:229/664) .