Subj : Southern Ontario Weather To : All From : Northern Realms Date : Thu Aug 07 2025 11:05:02 FPCN11 CWTO 071500 Forecasts for Southern Ontario and the National Capital Region issued by Environment Canada at 11:00 a.m. EDT Thursday 7 August 2025 for today and Friday. The next scheduled forecast will be issued at 3:30 p.m. EDT. City of Toronto. Today..Sunny. Local smoke near noon. Wind becoming south 20 km/h this afternoon. High 27. Humidex 33. UV index 8 or very high. Tonight..A few clouds. Low 20. Friday..Mainly sunny. High 30. Humidex 36. UV index 8 or very high. Windsor - Leamington - Essex County. Today..Mainly sunny. High 29. Humidex 35. UV index 9 or very high. Tonight..Clear. Low 19. Friday..Mainly sunny. High 30. Humidex 38. UV index 9 or very high. Chatham-Kent - Rondeau Park. Today..Sunny. Local smoke near noon. High 29. Humidex 34. UV index 9 or very high. Tonight..A few clouds. Low 19. Friday..Mainly sunny. Wind becoming southwest 20 km/h late in the morning. High 30. Humidex 38. UV index 9 or very high. Sarnia - Petrolia - Western Lambton County. Today..Mainly sunny. Wind becoming southeast 30 km/h then light late this afternoon. High 28. Humidex 34. UV index 8 or very high. Tonight..A few clouds. Low 18. Friday..A mix of sun and cloud. Wind becoming southwest 20 km/h late in the afternoon. High 30. Humidex 38. UV index 9 or very high. Watford - Pinery Park - Eastern Lambton County. Today..Sunny. Local smoke near noon. High 29. Humidex 35. UV index 8 or very high. Tonight..Partly cloudy. Clearing late this evening. Low 18. Friday..Mainly sunny. Wind becoming southwest 20 km/h late in the afternoon. High 30. Humidex 38. UV index 9 or very high. Rodney - Shedden - Western Elgin County. Today..Sunny. Local smoke near noon. High 27. Humidex 32. UV index 9 or very high. Tonight..A few clouds. Low 19. Friday..Mainly sunny. Wind south 20 km/h. High 29. Humidex 36. UV index 9 or very high. St. Thomas - Aylmer - Eastern Elgin County. Today..Sunny. Local smoke near noon. High 27. Humidex 32. UV index 9 or very high. Tonight..A few clouds. Low 19. Friday..Sunny. Wind south 20 km/h. High 29. Humidex 36. UV index 9 or very high. Strathroy - Komoka - Western Middlesex County. Today..Sunny. Local smoke near noon. High 28. Humidex 33. UV index 9 or very high. Tonight..A few clouds. Low 18. Friday..Mainly sunny. Wind becoming south 20 km/h in the morning. High 30. Humidex 38. UV index 9 or very high. London - Parkhill - Eastern Middlesex County. Today..Sunny. Local smoke near noon. High 28. Humidex 33. UV index 9 or very high. Tonight..A few clouds. Low 18. Friday..Mainly sunny. Wind becoming south 20 km/h in the morning. High 30. Humidex 38. UV index 9 or very high. Simcoe - Delhi - Norfolk. Today..Sunny. Local smoke near noon. Wind becoming south 20 km/h late this afternoon. High 28. Humidex 33. UV index 9 or very high. Tonight..A few clouds. Low 17. Friday..A mix of sun and cloud. Becoming sunny in the afternoon. Wind becoming southwest 20 km/h late in the morning. High 30. Humidex 36. UV index 9 or very high. Dunnville - Caledonia - Haldimand. Today..Sunny. Local smoke near noon. High 28. Humidex 34. UV index 9 or very high. Tonight..A few clouds. Low 19. Friday..Mainly sunny. Wind south 20 km/h becoming light in the afternoon. High 29. Humidex 35. UV index 8 or very high. Woodstock - Tillsonburg - Oxford County. Today..Sunny. Local smoke near noon. High 28. Humidex 33. UV index 8 or very high. Tonight..A few clouds. Low 18. Friday..Mainly sunny. Wind south 20 km/h. High 30. Humidex 37. UV index 9 or very high. Brantford - County of Brant. Today..Sunny. Local smoke near noon. High 28. Humidex 33. UV index 8 or very high. Tonight..A few clouds. Low 18. Friday..Mainly sunny. Wind south 20 km/h. High 30. Humidex 37. UV index 9 or very high. Niagara Falls - Welland - Southern Niagara Region. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Local smoke near noon. High 28. Humidex 35. UV index 9 or very high. Tonight..Mainly cloudy. Clearing late this evening. Low 22. Friday..Mainly sunny. Wind south 20 km/h becoming light in the afternoon. High 27. Humidex 35. UV index 8 or very high. St. Catharines - Grimsby - Northern Niagara Region. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Local smoke near noon. Wind east 20 km/h becoming light this afternoon. High 29. Humidex 35. UV index 9 or very high. Tonight..Partly cloudy. Low 20. Friday..Mainly sunny. Wind south 20 km/h becoming light in the afternoon. High 30. Humidex 38. UV index 8 or very high. City of Hamilton. Today..Sunny. Local smoke near noon. High 28. Humidex 34. UV index 9 or very high. Tonight..Partly cloudy. Becoming clear near midnight. Low 18. Friday..Mainly sunny. Wind south 20 km/h becoming light in the afternoon. High 29. Humidex 36. UV index 9 or very high. Burlington - Oakville. Today..Sunny. Local smoke near noon. High 27. Humidex 33. UV index 8 or very high. Tonight..Partly cloudy. Becoming clear near midnight. Low 16. Friday..Mainly sunny. High 28. Humidex 35. UV index 8 or very high. Halton Hills - Milton. Today..Sunny. Local smoke near noon. Wind becoming south 20 km/h this afternoon. High 27. Humidex 34. UV index 8 or very high. Tonight..Clear. Wind south 20 km/h becoming light early this evening. Low 16. Friday..Sunny. Becoming a mix of sun and cloud in the morning. High 28. Humidex 35. UV index 8 or very high. Mississauga - Brampton. Today..Sunny. Local smoke near noon. Wind becoming southeast 20 km/h this afternoon. High 27. Humidex 33. UV index 8 or very high. Tonight..A few clouds. Low 16. Friday..Sunny. Becoming a mix of sun and cloud in the morning. High 30. Humidex 36. UV index 8 or very high. Caledon. Today..Mainly sunny. Local smoke near noon. Wind southeast 20 km/h. High 27. Humidex 34. UV index 8 or very high. Tonight..Clear. Wind south 20 km/h becoming light early this evening. Low 16. Friday..A mix of sun and cloud. Becoming cloudy late in the morning. High 28. Humidex 35. UV index 8 or very high. Vaughan - Richmond Hill - Markham. Today..Sunny. Local smoke near noon. Wind becoming south 20 km/h this afternoon. High 29. Humidex 33. UV index 8 or very high. Tonight..A few clouds. Low 17. Friday..Sunny. Becoming a mix of sun and cloud in the morning. Wind becoming south 20 km/h late in the morning. High 30. Humidex 35. UV index 8 or very high. Newmarket - Georgina - Northern York Region. Today..Sunny. Local smoke. Wind becoming south 20 km/h gusting to 40 this afternoon. High 29. Humidex 32. UV index 8 or very high. Tonight..Clear. Low 17. Friday..Mainly sunny. Increasing cloudiness in the morning then 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. Wind becoming south 20 km/h late in the morning. High 29. Humidex 35. UV index 8 or very high. Pickering - Oshawa - Southern Durham Region. Today..Sunny. Local smoke near noon. High 29. Humidex 33. UV index 8 or very high. Tonight..Clear. Low 17. Friday..Mainly sunny. Wind becoming south 20 km/h late in the morning. High 29. Humidex 35. UV index 8 or very high. Uxbridge - Beaverton - Northern Durham Region. Today..Sunny. Local smoke. Wind becoming south 20 km/h this afternoon. High 29. Humidex 32. UV index 8 or very high. Tonight..Clear. Low 17. Friday..Sunny early 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. Wind becoming south 20 km/h late in the morning. High 29. Humidex 35. UV index 8 or very high. Goderich - Bluewater - Southern Huron County. Today..Mainly sunny. Local smoke. High 28. Humidex 34. UV index 8 or very high. Tonight..Partly cloudy. Low 17. Friday..A mix of sun and cloud. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Wind south 20 km/h. High 29. Humidex 37. UV index 8 or very high. Wingham - Blyth - Northern Huron County. Today..A mix of sun and cloud. Local smoke. Wind becoming south 20 km/h early this afternoon. High 29. Humidex 35. UV index 8 or very high. Tonight..Clear. Increasing cloudiness near midnight. Low 17. Friday..Mainly cloudy. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Wind south 20 km/h. High 29. Humidex 37. UV index 7 or high. Stratford - Mitchell - Southern Perth County. Today..Sunny. Local smoke. Wind south 20 km/h becoming light this afternoon. High 29. Humidex 35. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy near midnight. Low 17. Friday..Sunny early 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. Wind south 20 km/h. High 29. Humidex 37. UV index 8 or very high. Listowel - Milverton - Northern Perth County. Today..Mainly sunny. Local smoke. Wind south 20 km/h becoming light this afternoon. High 29. Humidex 35. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy after midnight. Low 17. Friday..Mainly cloudy. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Wind south 20 km/h. High 29. Humidex 37. UV index 7 or high. Kitchener - Cambridge - Region of Waterloo. Today..Sunny. Local smoke. High 28. Humidex 33. UV index 8 or very high. Tonight..Clear. Low 16. Friday..Sunny early 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. Wind southwest 20 km/h becoming light in the afternoon. High 30. Humidex 36. UV index 8 or very high. Guelph - Erin - Southern Wellington County. Today..Sunny. Local smoke. Wind becoming south 20 km/h this afternoon. High 28. Humidex 33. UV index 8 or very high. Tonight..Clear. Low 16. Friday..Sunny early 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. Wind southwest 20 km/h becoming light in the afternoon. High 30. Humidex 36. UV index 8 or very high. Mount Forest - Arthur - Northern Wellington County. Today..Sunny. Local smoke. Wind south 20 km/h becoming light late this afternoon. High 28. Humidex 33. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy after midnight. Low 16. Friday..Mainly cloudy. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Wind southwest 20 km/h becoming light in the afternoon. High 30. Humidex 36. UV index 8 or very high. Orangeville - Grand Valley - Southern Dufferin County. Today..Mainly sunny. Local smoke. Wind southeast 20 km/h. High 28. Humidex 33. UV index 8 or very high. Tonight..Clear. Wind south 20 km/h becoming light early this evening. Low 16. Friday..A mix of sun and cloud. Becoming cloudy late in the morning with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 29. Humidex 36. UV index 8 or very high. Shelburne - Mansfield - Northern Dufferin County. Today..Mainly sunny. Local smoke. Wind becoming south 20 km/h early this afternoon. High 28. Humidex 33. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy after midnight. Wind south 20 km/h becoming light early this evening. Low 16. Friday..A mix of sun and cloud. Becoming cloudy late in the morning with 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 29. Humidex 36. UV index 8 or very high. Innisfil - New Tecumseth - Angus. Today..Mainly sunny. Local smoke. Wind south 20 km/h. High 28. Humidex 33. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy after midnight. Wind south 20 km/h becoming light early this evening. Low 16. Friday..Mainly cloudy. 30 percent chance of showers in the afternoon with risk of a thunderstorm. High 29. Humidex 36. UV index 8 or very high. Saugeen Shores - Kincardine - Southern Bruce County. Today..A mix of sun and cloud. Local smoke. Wind southwest 20 km/h. High 28. Humidex 33. UV index 8 or very high. Tonight..Increasing cloudiness. Wind south 20 km/h becoming light this evening. Low 20. Friday..A mix of sun and cloud. 30 percent chance of showers in the afternoon with risk of a thunderstorm. High 29. Humidex 35. UV index 7 or high. Bruce Peninsula - Sauble Beach - Tobermory. Today..A mix of sun and cloud. Local smoke. Wind south 20 km/h becoming light this afternoon. High 26. Humidex 32. 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 south 20 km/h gusting to 40 before morning. Low 18. Friday..Mainly cloudy with 30 percent chance of showers in the morning and early in the afternoon and risk of a thunderstorm. Clearing late in the afternoon. High 24. Humidex 32. UV index 7 or high. Hanover - Dundalk - Southern Grey County. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Local smoke. Wind south 20 km/h. High 28. Humidex 33. UV index 8 or very high. Tonight..A few clouds. Increasing cloudiness after midnight. Low 18. Friday..Mainly cloudy. 30 percent chance of showers in the afternoon with risk of a thunderstorm. High 28. Humidex 35. UV index 7 or high. Owen Sound - Blue Mountains - Northern Grey County. Today..A mix of sun and cloud. Local smoke. Wind becoming southwest 20 km/h gusting to 40 then light late this afternoon. High 27. Humidex 32. UV index 8 or very high. Tonight..A few clouds. Increasing cloudiness after midnight. Low 18. Friday..Mainly cloudy. 30 percent chance of showers in the afternoon with risk of a thunderstorm. High 28. Humidex 35. UV index 7 or high. Barrie - Collingwood - Hillsdale. Today..Clearing this afternoon. Local smoke. Wind becoming south 20 km/h this afternoon. High 28. Humidex 33. UV index 8 or very high. Tonight..Clear. Low 16. Friday..Mainly cloudy. 30 percent chance of showers in the afternoon with risk of a thunderstorm. High 30. Humidex 36. UV index 8 or very high. Midland - Coldwater - Orr Lake. Today..A mix of sun and cloud. Local smoke. Wind becoming south 30 km/h early this afternoon. High 29. Humidex 34. UV index 8 or very high. Tonight..A few clouds. Increasing cloudiness before morning. Wind south 20 km/h becoming light early this evening. Low 16. Friday..Mainly cloudy. 30 percent chance of showers in the afternoon with risk of a thunderstorm. High 30. Humidex 36. UV index 7 or high. Orillia - Lagoon City - Washago. Today..Clearing this afternoon. Local smoke. Wind becoming south 20 km/h late this afternoon. High 28. Humidex 33. UV index 8 or very high. Tonight..Clear. Wind south 20 km/h becoming light late this evening. Low 16. Friday..Increasing cloudiness early in the morning. 30 percent chance of showers in the afternoon with risk of a thunderstorm. High 30. Humidex 36. UV index 7 or high. Cobourg - Colborne - Western Northumberland County. Today..Sunny. Local smoke near noon. High 28. Humidex 33. UV index 8 or very high. Tonight..A few clouds. Low 20. Friday..Sunny. High 29. Humidex 34. UV index 8 or very high. Belleville - Quinte West - Eastern Northumberland County. Today..Sunny. Local smoke near noon. High 28. Humidex 33. UV index 8 or very high. Tonight..A few clouds. Low 20. Friday..Sunny. High 29. Humidex 34. UV index 8 or very high. Picton - Sandbanks Park. Today..Sunny. Local smoke near noon. High 28. Humidex 33. UV index 8 or very high. Tonight..A few clouds. Low 20. Friday..Sunny. High 29. Humidex 34. UV index 8 or very high. Napanee - Consecon. Today..Sunny. Local smoke near noon. High 28. Humidex 33. UV index 8 or very high. Tonight..A few clouds. Low 20. Friday..Sunny. High 29. Humidex 34. UV index 8 or very high. Kingston - Odessa - Frontenac Islands. Today..Clearing this afternoon. Local smoke near noon. High 28. Humidex 33. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy this evening. Low 20. Friday..Sunny. High 29. Humidex 34. UV index 8 or very high. Lindsay - Southern Kawartha Lakes. Today..Clearing this afternoon. Local smoke. High 28. Humidex 33. UV index 8 or very high. Tonight..Clear. Low 16. Friday..Sunny early 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. Wind becoming south 20 km/h in the afternoon. High 29. Humidex 35. UV index 8 or very high. Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes. Today..A mix of sun and cloud. Local smoke. Wind becoming south 20 km/h this afternoon. High 28. Humidex 33. UV index 8 or very high. Tonight..Clear. Low 16. Friday..Sunny early 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. Wind becoming south 20 km/h in the afternoon. High 29. Humidex 35. UV index 7 or high. Peterborough City - Lakefield - Southern Peterborough County. Today..Clearing early this afternoon. Local smoke near noon. High 28. Humidex 33. UV index 8 or very high. Tonight..A few clouds. Low 14. Friday..Mainly sunny. High 29. Humidex 35. UV index 8 or very high. Apsley - Woodview - Northern Peterborough County. Today..A mix of sun and cloud. Local smoke. Wind becoming south 20 km/h this afternoon. High 29. Humidex 35. UV index 7 or high. Tonight..Clear. Low 16. Friday..Mainly sunny. Increasing cloudiness in the morning then 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 29. Humidex 34. UV index 7 or high. Stirling - Tweed - Madoc. Today..A mix of sun and cloud. Local smoke near noon. High 29. Humidex 34. UV index 8 or very high. Tonight..A few clouds. Low 18. Friday..Sunny. High 29. Humidex 34. UV index 8 or very high. Tamworth - Sydenham - South Frontenac. Today..Mainly sunny. Local smoke near noon. High 29. Humidex 34. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy this evening. Low 18. Friday..Sunny. High 29. Humidex 34. UV index 8 or very high. Kaladar - Bannockburn - Bon Echo Park. Today..A mix of sun and cloud. Local smoke near noon. High 30. Humidex 35. UV index 8 or very high. Tonight..A few clouds. Low 16. Friday..Sunny. High 30. Humidex 35. UV index 8 or very high. Bancroft - Hastings Highlands - Denbigh. Today..A mix of sun and cloud. 30 percent chance of showers with risk of a thunderstorm. Local smoke. Wind becoming south 20 km/h this afternoon. High 26. Humidex 31. UV index 8 or very high. Tonight..A few clouds. Wind south 20 km/h becoming light early this evening. Low 13. Friday..Mainly sunny. Increasing cloudiness in the morning then 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 29. Humidex 34. UV index 7 or high. Gananoque - Mallorytown. Today..Mainly sunny. Local smoke near noon. High 30. Humidex 37. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy late this evening. Low 19. Friday..Sunny. High 30. Humidex 35. UV index 8 or very high. Brockville - Prescott. Today..A mix of sun and cloud with 40 percent chance of showers and risk of a thunderstorm. High 29. Humidex 34. UV index 8 or very high. Tonight..Partly cloudy. 40 percent chance of showers early this evening with risk of a thunderstorm. Local smoke. Low 19. Friday..Clearing in the morning. Local smoke. High 30. Humidex 35. UV index 8 or very high. Westport - Charleston Lake. Today..A mix of sun and cloud. Local smoke near noon. High 30. Humidex 37. UV index 8 or very high. Tonight..A few clouds. Low 19. Friday..Sunny. High 30. Humidex 35. UV index 8 or very high. Merrickville-Wolford - Kemptville. Today..A mix of sun and cloud with 40 percent chance of showers and risk of a thunderstorm. High 29. Humidex 35. UV index 8 or very high. Tonight..Partly cloudy with 40 percent chance of showers early this evening and risk of a thunderstorm. Clearing this evening. Local smoke. Low 17. Friday..A mix of sun and cloud. Clearing late in the morning. Local smoke. High 31. Humidex 36. UV index 8 or very high. Ottawa North - Kanata - Orl‚ans. Today..A mix of sun and cloud with 60 percent chance of showers and risk of a thunderstorm. High 29. Humidex 36. 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. Local smoke. Low 16. Friday..A mix of sun and cloud. Local smoke. High 31. Humidex 37. UV index 8 or very high. Ottawa South - Richmond - Metcalfe. Today..A mix of sun and cloud with 60 percent chance of showers and risk of a thunderstorm. High 29. Humidex 35. 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. Local smoke. Low 16. Friday..A mix of sun and cloud. Local smoke. High 31. Humidex 37. UV index 8 or very high. Gatineau. Today..A mix of sun and cloud with 60 percent chance of showers and risk of a thunderstorm. High 29. Humidex 34. UV index 8 or very high. Tonight..Partly cloudy. 40 percent chance of showers early this evening with risk of a thunderstorm. Local smoke. Low 16. Friday..A mix of sun and cloud. Local smoke. High 31. Humidex 36. UV index 8 or very high. Prescott and Russell. Today..A mix of sun and cloud with 40 percent chance of showers and risk of a thunderstorm. High 29. Humidex 35. 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. Local smoke. Low 16. Friday..Mainly sunny. Local smoke. High 30. Humidex 35. UV index 8 or very high. Morrisburg - Long Sault. Today..A mix of sun and cloud with 40 percent chance of showers and risk of a thunderstorm. High 29. Humidex 35. UV index 8 or very high. Tonight..Partly cloudy with 40 percent chance of showers early this evening and risk of a thunderstorm. Clearing this evening. Local smoke. Low 17. Friday..Mainly sunny. Local smoke. High 30. Humidex 35. UV index 8 or very high. Cornwall - Lancaster. Today..A mix of sun and cloud with 40 percent chance of showers and risk of a thunderstorm. High 29. Humidex 35. UV index 8 or very high. Tonight..Partly cloudy. 40 percent chance of showers early this evening with risk of a thunderstorm. Clearing late this evening. Local smoke. Wind south 30 km/h becoming light this evening. Low 17. Friday..Sunny. Becoming a mix of sun and cloud in the afternoon. Local smoke. High 30. Humidex 35. UV index 8 or very high. Winchester - Newington. Today..A mix of sun and cloud with 40 percent chance of showers and risk of a thunderstorm. High 29. Humidex 35. UV index 8 or very high. Tonight..Partly cloudy with 40 percent chance of showers early this evening and risk of a thunderstorm. Clearing this evening. Local smoke. Low 17. Friday..Mainly sunny. Local smoke. High 30. Humidex 35. UV index 8 or very high. Maxville - Alexandria. Today..A mix of sun and cloud with 40 percent chance of showers and risk of a thunderstorm. High 30. Humidex 37. UV index 8 or very high. Tonight..Partly cloudy. 40 percent chance of showers early this evening with risk of a thunderstorm. Clearing late this evening. Local smoke. Wind south 20 km/h becoming light this evening. Low 14. Friday..Mainly sunny. Local smoke. High 31. Humidex 37. UV index 8 or very high. Plevna - Sharbot Lake - Western Lanark County. Today..A mix of sun and cloud with 60 percent chance of showers and risk of a thunderstorm. High 29. Humidex 34. UV index 8 or very high. Tonight..Partly cloudy. 40 percent chance of showers early this evening with risk of a thunderstorm. Local smoke. Low 16. Friday..Sunny. Local smoke. High 30. Humidex 35. UV index 8 or very high. Smiths Falls - Perth - Eastern Lanark County. Today..A mix of sun and cloud with 60 percent chance of showers and risk of a thunderstorm. High 29. Humidex 34. UV index 8 or very high. Tonight..Partly cloudy. 40 percent chance of showers early this evening with risk of a thunderstorm. Local smoke. Low 16. Friday..A mix of sun and cloud. Becoming sunny in the morning. Local smoke. High 30. Humidex 35. UV index 8 or very high. Port Carling - Port Severn. Today..A mix of sun and cloud. 30 percent chance of showers with risk of a thunderstorm. Local smoke. Wind becoming southeast 30 km/h this afternoon. High 30. Humidex 35. UV index 8 or very high. Tonight..A few clouds. Low 15. Friday..Mainly cloudy. 30 percent chance of showers in the afternoon with risk of a thunderstorm. High 29. Humidex 37. UV index 7 or high. Bracebridge - Gravenhurst. Today..A mix of sun and cloud. 30 percent chance of showers with risk of a thunderstorm. Local smoke. Wind becoming south 20 km/h this afternoon. High 30. Humidex 35. UV index 8 or very high. Tonight..Clearing. Wind south 20 km/h becoming light early this evening. Low 15. Friday..Increasing cloudiness early in the morning. 30 percent chance of showers in the afternoon with risk of a thunderstorm. High 29. Humidex 37. 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. Local smoke. High 28. Humidex 33. UV index 8 or very high. Tonight..Partly cloudy. Low 17. Friday..Mainly cloudy with 30 percent chance of showers and risk of a thunderstorm. High 27. Humidex 35. UV index 6 or high. Huntsville - Baysville. Today..A mix of sun and cloud. 30 percent chance of showers with risk of a thunderstorm. Local smoke. Wind becoming south 20 km/h this afternoon. High 28. Humidex 33. UV index 8 or very high. Tonight..Partly cloudy. Clearing after midnight. Low 17. Friday..A mix of sun and cloud. 30 percent chance of showers in the afternoon with risk of a thunderstorm. High 27. Humidex 35. UV index 8 or very high. Haliburton - Minden - Southern Haliburton County. Today..Mainly cloudy. 30 percent chance of showers with risk of a thunderstorm. Local smoke. Wind becoming south 20 km/h this afternoon. High 26. Humidex 31. UV index 7 or high. Tonight..A few clouds. Low 15. Friday..Sunny early 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 34. UV index 8 or very high. Oxtongue Lake - Fort Irwin - Northern Haliburton County. Today..Mainly cloudy. 30 percent chance of showers with risk of a thunderstorm. Local smoke. Wind becoming south 30 km/h this afternoon. High 26. Humidex 31. UV index 7 or high. Tonight..A few clouds. Low 15. Friday..Mainly sunny. Increasing cloudiness in the morning then 30 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 28. Humidex 34. UV index 8 or very high. Barry's Bay - Killaloe. Today..Increasing cloudiness near noon. 70 percent chance of showers with risk of a thunderstorm. Local smoke. High 28. Humidex 34. UV index 8 or very high. Tonight..Mainly cloudy with 70 percent chance of showers early this evening and risk of a thunderstorm. Clearing this evening. Low 17. Friday..Mainly sunny. Increasing cloudiness in the morning then 40 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 30. Humidex 35. UV index 8 or very high. Renfrew - Arnprior - Calabogie. Today..Sunny near noon then a mix of sun and cloud with 70 percent chance of showers. Risk of a thunderstorm this afternoon. Local smoke. High 28. Humidex 34. UV index 8 or very high. Tonight..Mainly cloudy with 70 percent chance of showers early this evening and risk of a thunderstorm. Clearing this evening. Low 17. Friday..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 30. Humidex 35. UV index 8 or very high. Petawawa - Pembroke - Cobden. Today..A mix of sun and cloud. 70 percent chance of showers with risk of a thunderstorm. Local smoke. Wind becoming south 20 km/h late this afternoon. High 26. Humidex 33. UV index 8 or very high. Tonight..Cloudy with 70 percent chance of showers early this evening and risk of a thunderstorm. Clearing near midnight. Low 17. Friday..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 30. Humidex 35. UV index 8 or very high. Western Algonquin Park - Lake of Two Rivers. Today..Increasing cloudiness late this morning. 70 percent chance of showers with risk of a thunderstorm. Local smoke. Wind becoming south 20 km/h this afternoon. High 25. Humidex 32. UV index 8 or very high. Tonight..Partly cloudy. 70 percent chance of showers early this evening with risk of a thunderstorm. Low 13. Friday..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 28. Humidex 34. UV index 8 or very high. Deep River - Whitney - Eastern Algonquin Park. Today..Increasing cloudiness late this morning. 70 percent chance of showers with risk of a thunderstorm. Local smoke. Wind becoming south 20 km/h this afternoon. High 25. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy. 70 percent chance of showers early this evening with risk of a thunderstorm. Low 13. Friday..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 28. Humidex 34. UV index 8 or very high. Bayfield Inlet - Dunchurch. Today..A mix of sun and cloud. Local smoke. Wind becoming south 20 km/h this afternoon. High 28. Humidex 33. UV index 8 or very high. Tonight..Cloudy. Becoming partly cloudy this evening. Low 19. Friday..A mix of sun and cloud with 30 percent chance of showers and risk of a thunderstorm. High 24. Humidex 32. UV index 8 or very high. South River - Burk's Falls. Today..A mix of sun and cloud. 30 percent chance of showers with risk of a thunderstorm. Local smoke. Wind becoming south 20 km/h this afternoon. High 28. Humidex 33. UV index 8 or very high. Tonight..Cloudy. Becoming partly cloudy this evening. Low 19. Friday..A mix of sun and cloud. 30 percent chance of showers in the afternoon with risk of a thunderstorm. High 24. Humidex 32. UV index 8 or very high. End $$$$^^ --- up 6 days, 4 hours, 58 minutes * Origin: Northern Realms (1:229/664) .