Subj : Southern Ontario Weather To : All From : Northern Realms Date : Fri Aug 22 2025 11:05:00 FPCN11 CWTO 221500 Forecasts for Southern Ontario and the National Capital Region issued by Environment Canada at 11:00 a.m. EDT Friday 22 August 2025 for today and Saturday. The next scheduled forecast will be issued at 3:30 p.m. EDT. City of Toronto. Today..Mainly sunny. High 27. Humidex 31. UV index 8 or very high. Tonight..Clear. Low 17. Saturday..A mix of sun and cloud. Wind becoming southwest 30 km/h gusting to 50 near noon. High 27. Humidex 33. UV index 8 or very high. Windsor - Leamington - Essex County. Today..Mainly sunny. High 27. Humidex 30. UV index 9 or very high. Tonight..A few clouds. Fog patches developing after midnight. Low 16. Saturday..Sunny early in the morning then a mix of sun and cloud with 40 percent chance of showers in the afternoon. Fog patches dissipating in the morning. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 26. Humidex 32. UV index 9 or very high. Chatham-Kent - Rondeau Park. Today..Mainly cloudy. Clearing late this afternoon. High 26. Humidex 31. UV index 8 or very high. Tonight..Clear. Fog patches developing after midnight. Low 15. Saturday..A mix of sun and cloud. 40 percent chance of showers in the afternoon. Fog patches dissipating in the morning. Wind becoming southwest 20 km/h gusting to 40 in the morning then northwest 30 gusting to 50 late in the afternoon. High 26. Humidex 32. UV index 9 or very high. Sarnia - Petrolia - Western Lambton County. Today..Mainly sunny. High 26. Humidex 31. UV index 9 or very high. Tonight..A few clouds. Fog patches developing after midnight. Low 16. Saturday..Increasing cloudiness. 40 percent chance of showers in the afternoon. Fog patches dissipating in the morning. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 26. Humidex 32. UV index 8 or very high. Watford - Pinery Park - Eastern Lambton County. Today..Sunny. High 26. Humidex 31. UV index 9 or very high. Tonight..Clear. Fog patches developing after midnight. Low 16. Saturday..A mix of sun and cloud. 40 percent chance of showers in the afternoon. Fog patches dissipating in the morning. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 26. Humidex 32. UV index 8 or very high. Rodney - Shedden - Western Elgin County. Today..Clearing this afternoon. High 25. Humidex 30. UV index 9 or very high. Tonight..Clear. Fog patches developing after midnight. Low 16. Saturday..A mix of sun and cloud. 30 percent chance of showers in the afternoon. Fog patches dissipating in the morning. Wind becoming west 30 km/h gusting to 50 in the morning. High 27. Humidex 32. UV index 8 or very high. St. Thomas - Aylmer - Eastern Elgin County. Today..Mainly sunny. High 25. Humidex 30. UV index 9 or very high. Tonight..Clear. Becoming partly cloudy after midnight. Fog patches developing after midnight. Low 16. Saturday..A mix of sun and cloud. 30 percent chance of showers in the afternoon. Fog patches dissipating in the morning. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 27. Humidex 32. UV index 8 or very high. Strathroy - Komoka - Western Middlesex County. Today..Mainly sunny. High 26. Humidex 31. UV index 9 or very high. Tonight..Clear. Fog patches developing after midnight. Low 16. Saturday..A mix of sun and cloud. 30 percent chance of showers in the afternoon. Fog patches dissipating in the morning. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 26. Humidex 31. UV index 8 or very high. London - Parkhill - Eastern Middlesex County. Today..Mainly sunny. High 26. Humidex 31. UV index 9 or very high. Tonight..Clear. Becoming partly cloudy after midnight. Fog patches developing after midnight. Low 16. Saturday..Mainly sunny. Increasing cloudiness in the morning then 30 percent chance of showers in the afternoon. Fog patches dissipating in the morning. Wind becoming west 30 km/h gusting to 50 in the morning. High 26. Humidex 31. UV index 8 or very high. Simcoe - Delhi - Norfolk. Today..Sunny. High 26. Humidex 29. UV index 9 or very high. Tonight..Clear. Fog patches developing after midnight. Low 15. Saturday..A mix of sun and cloud. 30 percent chance of showers late in the afternoon. Fog patches dissipating in the morning. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 27. Humidex 33. UV index 8 or very high. Dunnville - Caledonia - Haldimand. Today..Sunny. High 25. Humidex 28. UV index 9 or very high. Tonight..Clear. Fog patches developing after midnight. Low 14. Saturday..A mix of sun and cloud. 30 percent chance of showers late in the afternoon. Fog patches dissipating in the morning. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 27. Humidex 32. UV index 8 or very high. Woodstock - Tillsonburg - Oxford County. Today..Mainly sunny. High 26. Humidex 29. UV index 9 or very high. Tonight..A few clouds. Fog patches developing after midnight. Low 14. Saturday..A mix of sun and cloud. 30 percent chance of showers in the afternoon. Fog patches dissipating in the morning. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 28. Humidex 33. UV index 8 or very high. Brantford - County of Brant. Today..Sunny. High 26. Humidex 29. UV index 9 or very high. Tonight..Clear. Fog patches developing after midnight. Low 14. Saturday..A mix of sun and cloud. 30 percent chance of showers late in the afternoon. Fog patches dissipating in the morning. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 28. Humidex 33. UV index 8 or very high. Niagara Falls - Welland - Southern Niagara Region. Today..Sunny. High 25. Humidex 30. UV index 9 or very high. Tonight..Clear. Low 16. Saturday..A mix of sun and cloud. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 27. Humidex 34. UV index 8 or very high. St. Catharines - Grimsby - Northern Niagara Region. Today..Sunny. High 27. Humidex 32. UV index 9 or very high. Tonight..Clear. Low 16. Saturday..A mix of sun and cloud. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 28. Humidex 35. UV index 8 or very high. City of Hamilton. Today..Sunny. High 25. Humidex 30. UV index 9 or very high. Tonight..Clear. Low 14. Saturday..A mix of sun and cloud. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 27. Humidex 34. UV index 8 or very high. Burlington - Oakville. Today..Mainly sunny. High 26. Humidex 30. UV index 9 or very high. Tonight..Clear. Low 14. Saturday..A mix of sun and cloud. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 27. Humidex 33. UV index 8 or very high. Halton Hills - Milton. Today..Mainly sunny. High 26. Humidex 30. UV index 9 or very high. Tonight..Clear. Low 14. Saturday..A mix of sun and cloud. Becoming cloudy in the afternoon. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 27. Humidex 33. UV index 8 or very high. Mississauga - Brampton. Today..Mainly sunny. High 26. Humidex 31. UV index 9 or very high. Tonight..Clear. Low 16. Saturday..Mainly sunny. Increasing cloudiness late in the morning. Wind becoming south 20 km/h gusting to 40 late in the morning. High 27. Humidex 33. UV index 8 or very high. Caledon. Today..A mix of sun and cloud. High 26. Humidex 30. UV index 9 or very high. Tonight..Clearing this evening. Low 16. Saturday..Mainly sunny. Increasing cloudiness late in the morning then 30 percent chance of showers in the afternoon. Risk of a thunderstorm late in the afternoon. Wind southwest 30 km/h gusting to 50. High 27. Humidex 33. UV index 7 or high. Vaughan - Richmond Hill - Markham. Today..Mainly sunny. High 26. Humidex 30. UV index 9 or very high. Tonight..Clear. Low 16. Saturday..A mix of sun and cloud. Wind becoming southwest 20 km/h gusting to 40 near noon. High 26. Humidex 33. UV index 8 or very high. Newmarket - Georgina - Northern York Region. Today..A mix of sun and cloud. High 26. Humidex 30. UV index 9 or very high. Tonight..Clearing late this evening. Low 16. Saturday..Mainly sunny. Increasing cloudiness late in the morning then 30 percent chance of showers in the afternoon. Risk of a thunderstorm late in the afternoon. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 26. Humidex 33. UV index 8 or very high. Pickering - Oshawa - Southern Durham Region. Today..A mix of sun and cloud. High 26. Humidex 31. UV index 9 or very high. Tonight..Clear. Low 17. Saturday..A mix of sun and cloud. Wind becoming south 30 km/h gusting to 50 near noon. High 26. Humidex 33. UV index 8 or very high. Uxbridge - Beaverton - Northern Durham Region. Today..A mix of sun and cloud. High 26. Humidex 30. UV index 9 or very high. Tonight..Partly cloudy. Becoming clear this evening. Low 16. Saturday..Mainly sunny. Increasing cloudiness near noon then 30 percent chance of showers in the afternoon. Risk of a thunderstorm late in the afternoon. Wind becoming south 20 km/h gusting to 40 in the morning then light late in the afternoon. High 26. Humidex 33. UV index 8 or very high. Goderich - Bluewater - Southern Huron County. Today..Sunny. High 25. Humidex 30. UV index 8 or very high. Tonight..A few clouds. Wind becoming southwest 30 km/h late this evening. Low 16. Saturday..Mainly cloudy. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Wind southwest 40 km/h gusting to 60. High 25. Humidex 31. UV index 7 or high. Wingham - Blyth - Northern Huron County. Today..Sunny. High 26. Humidex 30. UV index 8 or very high. Tonight..A few clouds. Low 16. Saturday..Mainly cloudy. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 25. Humidex 31. UV index 7 or high. Stratford - Mitchell - Southern Perth County. Today..Mainly sunny. High 26. Humidex 30. UV index 8 or very high. Tonight..A few clouds. Low 16. Saturday..A mix of sun and cloud. Becoming cloudy near noon with 30 percent chance of showers in the afternoon. Risk of a thunderstorm late in the afternoon. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 25. Humidex 31. UV index 7 or high. Listowel - Milverton - Northern Perth County. Today..Sunny. High 26. Humidex 30. UV index 8 or very high. Tonight..A few clouds. Low 16. Saturday..Mainly cloudy. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 25. Humidex 31. UV index 7 or high. Kitchener - Cambridge - Region of Waterloo. Today..Sunny. High 26. Humidex 30. UV index 9 or very high. Tonight..Clear. Low 14. Saturday..A mix of sun and cloud. Becoming cloudy near noon with 30 percent chance of showers in the afternoon. Risk of a thunderstorm late in the afternoon. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 26. Humidex 31. UV index 8 or very high. Guelph - Erin - Southern Wellington County. Today..Mainly sunny. High 25. Humidex 29. UV index 9 or very high. Tonight..Clear. Low 14. Saturday..A mix of sun and cloud. Becoming cloudy near noon with 30 percent chance of showers in the afternoon. Risk of a thunderstorm late in the afternoon. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 26. Humidex 31. UV index 8 or very high. Mount Forest - Arthur - Northern Wellington County. Today..Mainly sunny. High 25. Humidex 29. UV index 9 or very high. Tonight..A few clouds. Low 15. Saturday..Mainly cloudy. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 26. Humidex 31. UV index 8 or very high. Orangeville - Grand Valley - Southern Dufferin County. Today..A mix of sun and cloud. High 27. Humidex 30. UV index 9 or very high. Tonight..Clearing this evening. Low 16. Saturday..Mainly sunny. Increasing cloudiness late in the morning then 30 percent chance of showers in the afternoon. Risk of a thunderstorm late in the afternoon. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 25. Humidex 31. UV index 8 or very high. Shelburne - Mansfield - Northern Dufferin County. Today..A mix of sun and cloud. High 26. Humidex 30. UV index 9 or very high. Tonight..Clear. Low 17. Saturday..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 late in the afternoon. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 27. Humidex 33. UV index 8 or very high. Innisfil - New Tecumseth - Angus. Today..A mix of sun and cloud. High 26. Humidex 30. UV index 9 or very high. Tonight..Clearing late this evening. Low 17. Saturday..Mainly sunny. Increasing cloudiness late in the morning then 30 percent chance of showers in the afternoon. Risk of a thunderstorm late in the afternoon. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 27. Humidex 33. UV index 8 or very high. Saugeen Shores - Kincardine - Southern Bruce County. Today..Sunny. High 26. Humidex 29. UV index 8 or very high. Tonight..A few clouds. Low 18 with temperature rising to 21 by morning. Saturday..Mainly cloudy. 60 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 25. Humidex 30. UV index 6 or high. Bruce Peninsula - Sauble Beach - Tobermory. Today..Mainly sunny. High 25. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy. Becoming cloudy this evening. Wind becoming south 20 km/h gusting to 40 overnight. Low 18. Saturday..Mainly cloudy. 60 percent chance of showers in the afternoon with risk of a thunderstorm. Wind southwest 20 km/h gusting to 40. High 25. Humidex 30. UV index 6 or high. Hanover - Dundalk - Southern Grey County. Today..Mainly sunny. High 25. Humidex 29. UV index 8 or very high. Tonight..A few clouds. Low 17. Saturday..Mainly cloudy. 60 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 25. Humidex 30. UV index 7 or high. Owen Sound - Blue Mountains - Northern Grey County. Today..Sunny. High 25. Humidex 30. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy this evening. Low 18. Saturday..Mainly cloudy. 60 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 25. Humidex 30. UV index 7 or high. Barrie - Collingwood - Hillsdale. Today..A mix of sun and cloud. High 26. Humidex 31. UV index 8 or very high. Tonight..Clearing this evening. Low 17. Saturday..Mainly sunny. Increasing cloudiness in the morning then 30 percent chance of showers in the afternoon. Risk of a thunderstorm late in the afternoon. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 26. Humidex 31. UV index 8 or very high. Midland - Coldwater - Orr Lake. Today..Mainly sunny. High 26. Humidex 31. UV index 8 or very high. Tonight..Partly cloudy. Low 17. Saturday..Mainly cloudy. 40 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 26. Humidex 31. UV index 7 or high. Orillia - Lagoon City - Washago. Today..A mix of sun and cloud. High 26. Humidex 31. UV index 8 or very high. Tonight..Clearing late this evening. Wind south 20 km/h becoming light near midnight. Wind becoming south 30 before morning. Low 20. Saturday..Mainly sunny. Increasing cloudiness late in the morning then 40 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. Wind southwest 40 km/h gusting to 60. High 26. Humidex 31. UV index 8 or very high. Cobourg - Colborne - Western Northumberland County. Today..Sunny. High 25. Humidex 30. UV index 8 or very high. Tonight..Clear. Low 15. Saturday..Sunny. Becoming a mix of sun and cloud late in the morning. Wind becoming southwest 30 km/h in the morning. High 27. Humidex 34. UV index 8 or very high. Belleville - Quinte West - Eastern Northumberland County. Today..Sunny. High 26. Humidex 31. UV index 8 or very high. Tonight..Clear. Low 15. Saturday..Sunny. Becoming a mix of sun and cloud late in the morning. Wind becoming southwest 30 km/h in the morning. High 27. Humidex 34. UV index 8 or very high. Picton - Sandbanks Park. Today..Sunny. High 25. Humidex 30. UV index 8 or very high. Tonight..Clear. Low 15. Saturday..Sunny. Becoming a mix of sun and cloud late in the morning. Wind becoming southwest 30 km/h in the morning. High 27. Humidex 34. UV index 8 or very high. Napanee - Consecon. Today..Sunny. High 26. Humidex 31. UV index 8 or very high. Tonight..Clear. Low 15. Saturday..Sunny. Becoming a mix of sun and cloud late in the morning. Wind becoming southwest 30 km/h in the morning. High 27. Humidex 34. UV index 8 or very high. Kingston - Odessa - Frontenac Islands. Today..Sunny. High 25. Humidex 30. UV index 8 or very high. Tonight..Clear. Low 17. Saturday..Sunny. Increasing cloudiness early in the afternoon. Wind south 20 km/h gusting to 40. High 27. Humidex 34. UV index 8 or very high. Lindsay - Southern Kawartha Lakes. Today..A mix of sun and cloud. High 26. Humidex 30. UV index 8 or very high. Tonight..A few clouds. Low 15. Saturday..A mix of sun and cloud. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Wind south 20 km/h becoming west 30 late in the afternoon. High 25. Humidex 30. UV index 8 or very high. Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes. Today..A mix of sun and cloud. High 26. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy. Low 15. Saturday..Mainly sunny. Increasing cloudiness in the afternoon then 30 percent chance of showers later in the afternoon. Risk of a thunderstorm in the afternoon. Wind becoming south 20 km/h gusting to 40 in the morning. High 25. Humidex 30. UV index 8 or very high. Peterborough City - Lakefield - Southern Peterborough County. Today..A mix of sun and cloud. High 28. Humidex 31. UV index 8 or very high. Tonight..A few clouds. Low 14. Saturday..A mix of sun and cloud. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming south 30 km/h gusting to 50 in the morning. High 26. Humidex 31. UV index 8 or very high. Apsley - Woodview - Northern Peterborough County. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 26. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy. Low 13. Saturday..A mix of sun and cloud. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 26. Humidex 31. UV index 8 or very high. Stirling - Tweed - Madoc. Today..A mix of sun and cloud. High 27. Humidex 29. UV index 8 or very high. Tonight..A few clouds. Low 15. Saturday..A mix of sun and cloud. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 26. Humidex 31. UV index 8 or very high. Tamworth - Sydenham - South Frontenac. Today..Sunny. High 27. Humidex 29. UV index 8 or very high. Tonight..Clear. Low 15. Saturday..Sunny. Increasing cloudiness early in the afternoon. Wind becoming south 20 km/h gusting to 40 in the morning. High 26. Humidex 31. UV index 8 or very high. Kaladar - Bannockburn - Bon Echo Park. Today..A mix of sun and cloud. High 27. Humidex 29. UV index 8 or very high. Tonight..Clear. Low 14. Saturday..A mix of sun and cloud. 30 percent chance of showers late in the afternoon. Wind becoming south 30 km/h gusting to 50 in the morning. High 26. Humidex 31. UV index 8 or very high. Bancroft - Hastings Highlands - Denbigh. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 28. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy. Low 13. Saturday..A mix of sun and cloud. 30 percent chance of showers late in the afternoon. Wind becoming southwest 30 km/h gusting to 60 in the morning. High 26. Humidex 31. UV index 8 or very high. Gananoque - Mallorytown. Today..Sunny. High 28. Humidex 31. UV index 9 or very high. Tonight..Clear. Low 16. Saturday..Sunny. Increasing cloudiness in the afternoon. Wind becoming south 20 km/h gusting to 40 in the morning. High 27. Humidex 32. UV index 8 or very high. Brockville - Prescott. Today..Sunny. High 28. Humidex 31. UV index 9 or very high. Tonight..Clear. Low 16. Saturday..Sunny. Increasing cloudiness in the afternoon. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 27. Humidex 32. UV index 8 or very high. Westport - Charleston Lake. Today..Mainly sunny. High 28. Humidex 31. UV index 9 or very high. Tonight..Partly cloudy. Becoming clear this evening. Low 16. Saturday..Mainly sunny. Wind south 20 km/h gusting to 40. High 27. Humidex 32. UV index 8 or very high. Merrickville-Wolford - Kemptville. Today..Mainly sunny. High 28. Humidex 31. UV index 9 or very high. Tonight..A few clouds. Low 16. Saturday..Sunny. Becoming a mix of sun and cloud in the afternoon. Wind becoming south 30 km/h gusting to 50 in the morning. High 27. Humidex 32. UV index 8 or very high. Ottawa North - Kanata - Orleans. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 29. Humidex 31. UV index 8 or very high. Tonight..A few clouds. Low 16. Saturday..Sunny. Becoming a mix of sun and cloud in the afternoon. Wind becoming south 30 km/h gusting to 50 in the morning. High 28. Humidex 33. UV index 8 or very high. Ottawa South - Richmond - Metcalfe. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 28. Humidex 30. UV index 8 or very high. Tonight..A few clouds. Low 16. Saturday..Sunny. Becoming a mix of sun and cloud in the afternoon. Wind becoming south 30 km/h gusting to 50 in the morning. High 28. Humidex 33. UV index 8 or very high. Gatineau. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 29. Humidex 31. UV index 8 or very high. Tonight..Partly cloudy. Low 16. Saturday..Mainly sunny. Wind becoming south 30 km/h gusting to 50 early in the afternoon. High 29. Humidex 34. UV index 8 or very high. Prescott and Russell. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 28. Humidex 30. UV index 8 or very high. Tonight..A few clouds. Low 16. Saturday..Sunny. Becoming a mix of sun and cloud late in the afternoon. Wind becoming south 30 km/h gusting to 50 in the morning. High 28. Humidex 31. UV index 8 or very high. Morrisburg - Long Sault. Today..Mainly sunny. High 28. Humidex 31. UV index 8 or very high. Tonight..Clear. Low 17. Saturday..Sunny. Becoming a mix of sun and cloud in the afternoon. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 28. Humidex 33. UV index 8 or very high. Cornwall - Lancaster. Today..Sunny. High 27. Humidex 30. UV index 8 or very high. Tonight..Clear. Low 17. Saturday..Sunny. Becoming a mix of sun and cloud in the afternoon. Wind becoming southwest 30 km/h gusting to 50 late in the morning. High 28. Humidex 33. UV index 8 or very high. Winchester - Newington. Today..Mainly sunny. High 28. Humidex 31. UV index 8 or very high. Tonight..Clear. Low 17. Saturday..Sunny. Becoming a mix of sun and cloud in the afternoon. Wind becoming south 30 km/h gusting to 60 in the morning. High 28. Humidex 33. UV index 8 or very high. Maxville - Alexandria. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 28. Humidex 31. UV index 8 or very high. Tonight..A few clouds. Low 16. Saturday..Sunny. Becoming a mix of sun and cloud late in the afternoon. Wind becoming south 20 km/h gusting to 60 in the morning. High 28. Humidex 33. UV index 8 or very high. Plevna - Sharbot Lake - Western Lanark County. Today..Increasing cloudiness near noon. High 28. Humidex 31. UV index 8 or very high. Tonight..A few clouds. Low 16. Saturday..A mix of sun and cloud. 30 percent chance of showers late in the afternoon. Wind becoming south 30 km/h gusting to 50 in the morning. High 27. Humidex 31. UV index 8 or very high. Smiths Falls - Perth - Eastern Lanark County. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 28. Humidex 31. UV index 8 or very high. Tonight..Clearing. Low 17. Saturday..Sunny. Becoming a mix of sun and cloud in the afternoon. Wind becoming south 30 km/h gusting to 50 in the morning. High 27. Humidex 31. UV index 8 or very high. Port Carling - Port Severn. Today..Mainly sunny. High 25. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy. Low 17. Saturday..Mainly cloudy. 40 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 26. Humidex 31. UV index 7 or high. Bracebridge - Gravenhurst. Today..A mix of sun and cloud. High 28. Humidex 33. UV index 8 or very high. Tonight..Partly cloudy. Low 17. Saturday..Mainly cloudy. 40 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming south 20 km/h gusting to 40 then light near noon. High 26. Humidex 31. UV index 8 or very high. Town of Parry Sound - Rosseau - Killbear Park. Today..Sunny. High 25. Humidex 30. UV index 8 or very high. Tonight..Increasing cloudiness. Low 17. Saturday..Mainly cloudy. 60 percent chance of showers in the afternoon with risk of a thunderstorm. Wind south 30 km/h gusting to 50 becoming west 30 gusting to 50 in the afternoon. High 26. Humidex 31. UV index 8 or very high. Huntsville - Baysville. Today..A mix of sun and cloud. High 25. Humidex 30. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy late this evening. Low 17. Saturday..Mainly cloudy. 40 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 26. Humidex 31. UV index 7 or high. Haliburton - Minden - Southern Haliburton County. Today..A mix of sun and cloud. High 26. Humidex 29. UV index 8 or very high. Tonight..Partly cloudy. Low 13. Saturday..A mix of sun and cloud. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 50 in the morning then light late in the afternoon. High 25. Humidex 30. UV index 8 or very high. Oxtongue Lake - Fort Irwin - Northern Haliburton County. Today..A mix of sun and cloud. High 26. Humidex 29. UV index 8 or very high. Tonight..Partly cloudy. Low 12. Saturday..A mix of sun and cloud. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 25. Humidex 30. UV index 8 or very high. Barry's Bay - Killaloe. Today..Increasing cloudiness near noon. High 27. Humidex 30. UV index 8 or very high. Tonight..Partly cloudy. Low 18. Saturday..A mix of sun and cloud. 30 percent chance of showers late in the afternoon. Wind becoming southwest 30 km/h gusting to 60 in the morning. High 28. Humidex 32. UV index 8 or very high. Renfrew - Arnprior - Calabogie. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 27. Humidex 30. UV index 8 or very high. Tonight..Clearing this evening. Low 18. Saturday..A mix of sun and cloud. 30 percent chance of showers late in the afternoon. Wind becoming southwest 20 km/h gusting to 60 in the morning. High 28. Humidex 32. UV index 7 or high. Petawawa - Pembroke - Cobden. Today..Increasing cloudiness this afternoon. High 26. Humidex 31. UV index 8 or very high. Tonight..Partly cloudy. Low 18. Saturday..A mix of sun and cloud. 30 percent chance of showers late in the afternoon. Wind becoming southeast 20 km/h gusting to 40 late in the morning. High 28. Humidex 32. UV index 8 or very high. Western Algonquin Park - Lake of Two Rivers. Today..A mix of sun and cloud. High 25. Humidex 28. UV index 8 or very high. Tonight..A few clouds. Low 14. Saturday..A mix of sun and cloud. 40 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 25. Humidex 30. UV index 7 or high. Deep River - Whitney - Eastern Algonquin Park. Today..Increasing cloudiness near noon. High 27. Humidex 30. UV index 8 or very high. Tonight..A few clouds. Low 15. Saturday..A mix of sun and cloud. 30 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 25. Humidex 30. UV index 8 or very high. Bayfield Inlet - Dunchurch. Today..A mix of sun and cloud. High 25. Humidex 29. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy near midnight. Low 17. Saturday..Mainly cloudy. 60 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 23. Humidex 28. UV index 6 or high. South River - Burk's Falls. Today..A mix of sun and cloud. High 26. Humidex 30. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy near midnight. Low 15. Saturday..Mainly cloudy. 60 percent chance of showers in the afternoon with risk of a thunderstorm. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 24. Humidex 29. UV index 6 or high. End $$$$^^ --- up 1 day, 7 hours, 27 minutes * Origin: Northern Realms (618:400/23) .