Subj : [1/2] Southern Ontario Weather To : All From : Northern Realms Date : Mon Aug 18 2025 11:05:00 FPCN11 CWTO 181500 Forecasts for Southern Ontario and the National Capital Region issued by Environment Canada at 11:00 a.m. EDT Monday 18 August 2025 for today and Tuesday. The next scheduled forecast will be issued at 3:30 p.m. EDT. City of Toronto. Today..Mainly sunny. Wind east 30 km/h gusting to 50. High 23. UV index 8 or very high. Tonight..Clear. Wind east 20 km/h becoming light this evening. Low 15. Tuesday..Mainly cloudy. 30 percent chance of showers in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 7 or high. Windsor - Leamington - Essex County. Today..Clearing this afternoon. Wind east 20 km/h gusting to 40. High 26. Humidex 28. UV index 9 or very high. Tonight..Clear. Increasing cloudiness near midnight. Fog patches developing overnight. Wind east 20 km/h gusting to 40 becoming light this evening. Low 16. Tuesday..Cloudy. 30 percent chance of showers late in the morning and early afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. Fog patches dissipating in the morning. High 27. Humidex 30. UV index 6 or high. Chatham-Kent - Rondeau Park. Today..Clearing this afternoon. Wind east 20 km/h gusting to 40. High 25. Humidex 27. UV index 9 or very high. Tonight..Clear. Fog patches developing overnight. Wind east 20 km/h gusting to 40 becoming light this evening. Low 16. Tuesday..Cloudy. 30 percent chance of showers late in the morning and early afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. Fog patches dissipating in the morning. High 27. Humidex 30. UV index 6 or high. Sarnia - Petrolia - Western Lambton County. Today..Sunny. Wind east 20 km/h gusting to 40. High 25. Humidex 27. UV index 9 or very high. Tonight..Clear. Becoming partly cloudy overnight. Wind east 20 km/h gusting to 40 becoming light this evening. Low 15. Tuesday..Cloudy. 30 percent chance of showers late in the morning and early afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 26. Humidex 29. UV index 6 or high. Watford - Pinery Park - Eastern Lambton County. Today..Sunny. Wind east 20 km/h gusting to 40. High 25. Humidex 27. UV index 9 or very high. Tonight..Clear. Becoming partly cloudy overnight. Wind east 20 km/h gusting to 40 becoming light this evening. Low 15. Tuesday..Mainly cloudy. 30 percent chance of showers late in the morning and early afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 26. Humidex 29. UV index 7 or high. Rodney - Shedden - Western Elgin County. Today..Clearing this afternoon. Wind east 20 km/h gusting to 40. High 25. Humidex 27. UV index 9 or very high. Tonight..Clear. Wind east 20 km/h gusting to 40 becoming light this evening. Low 15. Tuesday..Increasing cloudiness. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 26. Humidex 28. UV index 6 or high. St. Thomas - Aylmer - Eastern Elgin County. Today..Clearing this afternoon. Wind east 20 km/h gusting to 40. High 25. Humidex 27. UV index 9 or very high. Tonight..Clear. Wind east 20 km/h gusting to 40 becoming light this evening. Low 15. Tuesday..Becoming cloudy in the morning. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 26. Humidex 28. UV index 6 or high. Strathroy - Komoka - Western Middlesex County. Today..Sunny. Wind east 20 km/h gusting to 40. High 24. UV index 9 or very high. Tonight..Clear. Wind east 20 km/h gusting to 40 becoming light this evening. Low 13. Tuesday..Becoming cloudy in the morning. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 6 or high. London - Parkhill - Eastern Middlesex County. Today..Sunny. Wind east 20 km/h gusting to 40. High 24. UV index 9 or very high. Tonight..Clear. Wind east 20 km/h gusting to 40 becoming light this evening. Low 13. Tuesday..Becoming cloudy in the morning. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 6 or high. Simcoe - Delhi - Norfolk. Today..A mix of sun and cloud. Becoming sunny this afternoon. Wind northeast 20 km/h gusting to 40. High 23. Humidex 25. UV index 9 or very high. Tonight..Clear. Wind northeast 20 km/h becoming light late this evening. Low 17. Tuesday..Becoming cloudy in the morning. 30 percent chance of showers in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 27. Humidex 33. UV index 6 or high. Dunnville - Caledonia - Haldimand. Today..Clearing this afternoon. Wind northeast 20 km/h gusting to 40. High 23. Humidex 25. UV index 9 or very high. Tonight..Clear. Wind northeast 20 km/h gusting to 40 becoming light late this evening. Low 17. Tuesday..Cloudy. 30 percent chance of showers in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 27. Humidex 33. UV index 7 or high. Woodstock - Tillsonburg - Oxford County. Today..Sunny. Wind east 20 km/h gusting to 40. High 23. UV index 9 or very high. Tonight..Clear. Wind east 20 km/h gusting to 40 becoming light this evening. Low 13. Tuesday..Becoming cloudy in the morning. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 6 or high. Brantford - County of Brant. Today..Clearing this afternoon. Wind east 20 km/h gusting to 40. High 23. UV index 9 or very high. Tonight..Clear. Wind east 20 km/h gusting to 40 becoming light this evening. Low 13. Tuesday..Becoming cloudy in the morning. 30 percent chance of showers in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 7 or high. Niagara Falls - Welland - Southern Niagara Region. Today..Clearing this afternoon. Wind northeast 20 km/h gusting to 40. High 23. Humidex 25. UV index 9 or very high. Tonight..Clear. Becoming partly cloudy after midnight. Wind northeast 20 km/h gusting to 40 becoming light late this evening. Low 17. Tuesday..Mainly cloudy. 30 percent chance of showers in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 27. Humidex 33. UV index 8 or very high. St. Catharines - Grimsby - Northern Niagara Region. Today..Clearing this afternoon. Wind northeast 20 km/h gusting to 40. High 24. Humidex 26. UV index 9 or very high. Tonight..Clear. Becoming partly cloudy overnight. Wind northeast 20 km/h gusting to 40 becoming light late this evening. Low 17. Tuesday..Mainly cloudy. 30 percent chance of showers in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 27. Humidex 33. UV index 8 or very high. City of Hamilton. Today..Clearing this afternoon. Wind east 30 km/h gusting to 50. High 23. UV index 9 or very high. Tonight..Clear. Wind east 20 km/h gusting to 40 becoming light this evening. Low 13. Tuesday..Becoming cloudy in the morning. 30 percent chance of showers in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 8 or very high. Burlington - Oakville. Today..A mix of sun and cloud. Becoming sunny this afternoon. Wind east 30 km/h gusting to 50. High 23. UV index 9 or very high. Tonight..Clear. Wind east 20 km/h gusting to 40 becoming light this evening. Low 15. Tuesday..Mainly cloudy. 30 percent chance of showers in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 8 or very high. Halton Hills - Milton. Today..Mainly sunny. Wind east 20 km/h gusting to 40. High 23. UV index 9 or very high. Tonight..A few clouds. Wind east 20 km/h gusting to 40 becoming light this evening. Low 15. Tuesday..Increasing cloudiness. 30 percent chance of showers in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 8 or very high. Mississauga - Brampton. Today..Mainly sunny. Wind east 30 km/h gusting to 50. High 23. UV index 9 or very high. Tonight..A few clouds. Wind east 20 km/h gusting to 40 becoming light this evening. Low 15. Tuesday..Increasing cloudiness. 30 percent chance of showers in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 8 or very high. Caledon. Today..Sunny. Wind east 20 km/h gusting to 40. High 23. UV index 9 or very high. Tonight..Clear. Low 12. Tuesday..A mix of sun and cloud. Becoming cloudy near noon with 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 8 or very high. Vaughan - Richmond Hill - Markham. Today..Mainly sunny. Wind east 20 km/h gusting to 40. High 23. UV index 9 or very high. Tonight..A few clouds. Wind east 20 km/h gusting to 40 becoming light this evening. Low 15. Tuesday..Increasing cloudiness. 30 percent chance of showers in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 8 or very high. Newmarket - Georgina - Northern York Region. Today..Sunny. Wind east 20 km/h gusting to 40. High 23. UV index 9 or very high. Tonight..Clear. Low 11. Tuesday..Increasing cloudiness. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 30. UV index 8 or very high. Pickering - Oshawa - Southern Durham Region. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Wind east 20 km/h gusting to 40. High 23. UV index 9 or very high. Tonight..Clear. Wind east 20 km/h gusting to 40 becoming light this evening. Low 15. Tuesday..Increasing cloudiness. 30 percent chance of showers in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 8 or very high. Uxbridge - Beaverton - Northern Durham Region. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Wind east 20 km/h gusting to 40. High 23. UV index 9 or very high. Tonight..Clear. Low 11. Tuesday..Increasing cloudiness. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 30. UV index 8 or very high. Goderich - Bluewater - Southern Huron County. Today..Sunny. Wind east 20 km/h gusting to 40. High 25. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy after midnight. Low 13. Tuesday..Cloudy. 30 percent chance of showers late in the morning and early afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 24. Humidex 28. UV index 6 or high. Wingham - Blyth - Northern Huron County. Today..Sunny. Wind east 20 km/h. High 25. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy overnight. Low 13. Tuesday..Cloudy. 30 percent chance of showers late in the morning and early afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 24. Humidex 28. UV index 6 or high. Stratford - Mitchell - Southern Perth County. Today..Sunny. Wind east 20 km/h gusting to 40. High 23. UV index 8 or very high. Tonight..Clear. Low 12. Tuesday..Becoming cloudy in the morning. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 6 or high. Listowel - Milverton - Northern Perth County. Today..Sunny. Wind east 20 km/h gusting to 40. High 23. UV index 8 or very high. Tonight..Clear. Low 12. Tuesday..Becoming cloudy in the morning. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 6 or high. Kitchener - Cambridge - Region of Waterloo. Today..Sunny. Wind east 20 km/h gusting to 40. High 23. UV index 9 or very high. Tonight..Clear. Low 12. Tuesday..Becoming cloudy in the morning. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 7 or high. Guelph - Erin - Southern Wellington County. Today..Sunny. Wind east 20 km/h gusting to 40. High 23. UV index 9 or very high. Tonight..Clear. Low 12. Tuesday..Becoming cloudy in the morning. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 8 or very high. Mount Forest - Arthur - Northern Wellington County. Today..Sunny. Wind east 20 km/h gusting to 40. High 23. UV index 9 or very high. Tonight..Clear. Low 12. Tuesday..Mainly cloudy. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 7 or high. Orangeville - Grand Valley - Southern Dufferin County. Today..Sunny. Wind east 20 km/h gusting to 40. High 23. UV index 9 or very high. Tonight..Clear. Low 12. Tuesday..A mix of sun and cloud. Becoming cloudy near noon with 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 8 or very high. Shelburne - Mansfield - Northern Dufferin County. Today..Sunny. Wind east 20 km/h gusting to 40. High 23. UV index 9 or very high. Tonight..Clear. Low 12. Tuesday..A mix of sun and cloud. Becoming cloudy near noon with 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 29. UV index 8 or very high. Innisfil - New Tecumseth - Angus. Today..Sunny. Wind east 20 km/h gusting to 40. High 23. UV index 9 or very high. Tonight..Clear. Low 11. Tuesday..Mainly sunny. Increasing cloudiness late in the morning then 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 30. UV index 8 or very high. Saugeen Shores - Kincardine - Southern Bruce County. Today..Sunny. Wind east 20 km/h gusting to 40. High 23. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy after midnight. Low 12. Tuesday..Cloudy. 30 percent chance of showers late in the morning and early afternoon then 70 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 25. Humidex 29. UV index 6 or high. Bruce Peninsula - Sauble Beach - Tobermory. Today..Sunny. Wind east 20 km/h gusting to 40. High 23. UV index 8 or very high. Tonight..Clear. Increasing cloudiness after midnight. Wind east 20 km/h gusting to 40 becoming light this evening. Low 14. Tuesday..Cloudy. 30 percent chance of showers changing to 70 percent chance of showers near noon. Risk of a thunderstorm in the afternoon. High 23. Humidex 27. UV index 5 or moderate. Hanover - Dundalk - Southern Grey County. Today..Sunny. Wind east 20 km/h gusting to 40. High 23. UV index 8 or very high. Tonight..Clear. Low 12. Tuesday..Increasing cloudiness. 30 percent chance of showers late in the morning and early afternoon then 70 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 25. Humidex 29. UV index 7 or high. Owen Sound - Blue Mountains - Northern Grey County. Today..Sunny. Wind east 20 km/h gusting to 40. High 23. UV index 8 or very high. Tonight..Clear. Becoming partly cloudy overnight. Low 12. Tuesday..A mix of sun and cloud. Becoming cloudy late in the morning with 30 percent chance of showers late in the morning and early afternoon then 70 percent chance of showers in the afternoon. Risk of a thunderstorm in the afternoon. High 25. Humidex 29. UV index 6 or high. Barrie - Collingwood - Hillsdale. Today..Sunny. Wind east 20 km/h gusting to 40. High 23. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 28. UV index 8 or very high. Midland - Coldwater - Orr Lake. Today..A mix of sun and cloud. High 23. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..Mainly sunny. Increasing cloudiness late in the morning then 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 28. UV index 8 or very high. Orillia - Lagoon City - Washago. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 23. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. Risk of a thunderstorm late in the afternoon. High 25. Humidex 28. UV index 8 or very high. Cobourg - Colborne - Western Northumberland County. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Wind northeast 20 km/h gusting to 40. High 22. UV index 8 or very high. Tonight..Clear. Low 13. Tuesday..Sunny early in the morning then a mix of sun and cloud with 30 percent chance of showers changing to 70 percent chance of showers in the afternoon. High 25. Humidex 29. UV index 8 or very high. Belleville - Quinte West - Eastern Northumberland County. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Wind northeast 20 km/h gusting to 40. High 22. UV index 8 or very high. Tonight..Clear. Low 13. Tuesday..Sunny early in the morning then a mix of sun and cloud with 30 percent chance of showers changing to 70 percent chance of showers in the afternoon. High 25. Humidex 29. UV index 8 or very high. Picton - Sandbanks Park. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Wind northeast 20 km/h gusting to 40. High 22. UV index 8 or very high. Tonight..Clear. Low 13. Tuesday..Sunny early in the morning then a mix of sun and cloud with 30 percent chance of showers changing to 70 percent chance of showers in the afternoon. High 25. Humidex 29. UV index 8 or very high. Napanee - Consecon. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Wind northeast 20 km/h gusting to 40. High 22. UV index 8 or very high. Tonight..Clear. Low 13. Tuesday..Sunny early in the morning then a mix of sun and cloud with 30 percent chance of showers changing to 70 percent chance of showers in the afternoon. High 25. Humidex 29. UV index 8 or very high. Kingston - Odessa - Frontenac Islands. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Wind northeast 20 km/h gusting to 40. High 22. UV index 8 or very high. Tonight..Clear. Low 13. Tuesday..Sunny early in the morning then a mix of sun and cloud with 30 percent chance of showers changing to 70 percent chance of showers in the afternoon. High 25. Humidex 29. UV index 8 or very high. Lindsay - Southern Kawartha Lakes. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 23. UV index 8 or very high. Tonight..Clear. Low 11. Tuesday..Increasing cloudiness. 30 percent chance of showers changing to 70 percent chance of showers near noon. High 25. Humidex 29. UV index 8 or very high. Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 21. UV index 8 or very high. Tonight..Clear. Low 9. Tuesday..Sunny early in the morning then a mix of sun and cloud with 30 percent chance of showers changing to 70 percent chance of showers near noon. High 23. UV index 8 or very high. Peterborough City - Lakefield - Southern Peterborough County. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 23. UV index 8 or very high. Tonight..Clear. Low 11. Tuesday..Sunny early in the morning then a mix of sun and cloud with 30 percent chance of showers changing to 70 percent chance of showers near noon. High 25. Humidex 29. UV index 8 or very high. Apsley - Woodview - Northern Peterborough County. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 21. UV index 8 or very high. Tonight..Clear. Low 9. Tuesday..Increasing cloudiness. 30 percent chance of showers changing to 70 percent chance of showers near noon. High 23. UV index 8 or very high. Stirling - Tweed - Madoc. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Wind northeast 20 km/h gusting to 40. High 22. UV index 8 or very high. Tonight..Clear. Low 13. Tuesday..Sunny early in the morning then a mix of sun and cloud with 30 percent chance of showers changing to 70 percent chance of showers in the afternoon. High 25. Humidex 29. UV index 7 or high. Tamworth - Sydenham - South Frontenac. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Wind northeast 20 km/h gusting to 40. High 22. UV index 8 or very high. Tonight..Clear. Low 13. Tuesday..Sunny early in the morning then a mix of sun and cloud with 30 percent chance of showers changing to 70 percent chance of showers in the afternoon. High 25. Humidex 29. UV index 8 or very high. Kaladar - Bannockburn - Bon Echo Park. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 21. UV index 8 or very high. Tonight..Clear. Low 9. Tuesday..Increasing cloudiness. 30 percent chance of showers changing to 70 percent chance of showers in the afternoon. High 23. UV index 7 or high. Bancroft - Hastings Highlands - Denbigh. Today..A mix of sun and cloud. High 21. UV index 8 or very high. Tonight..Clear. Low 8. Tuesday..Increasing cloudiness. 30 percent chance of showers changing to 70 percent chance of showers in the afternoon. High 23. UV index 7 or high. Gananoque - Mallorytown. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 22. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..Sunny in the morning then a mix of sun and cloud with 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. High 23. Humidex 26. UV index 8 or very high. Brockville - Prescott. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 22. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. High 23. Humidex 26. UV index 8 or very high. Westport - Charleston Lake. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Wind northeast 20 km/h. High 22. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. High 23. Humidex 26. UV index 8 or very high. Merrickville-Wolford - Kemptville. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Wind northeast 20 km/h. High 22. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. High 23. Humidex 26. UV index 8 or very high. Ottawa North - Kanata - Orleans. Today..A mix of sun and cloud. Wind northeast 20 km/h. High 22. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..Sunny in the morning then a mix of sun and cloud with 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. High 23. Humidex 26. UV index 8 or very high. Ottawa South - Richmond - Metcalfe. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Wind northeast 20 km/h. High 22. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..Sunny in the morning then a mix of sun and cloud with 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. High 23. Humidex 26. UV index 8 or very high. Gatineau. Today..A mix of sun and cloud. Wind northeast 20 km/h. High 22. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..Sunny in the morning then a mix of sun and cloud with 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. High 23. Humidex 26. UV index 8 or very high. Prescott and Russell. Today..A mix of sun and cloud. Wind northeast 20 km/h. High 22. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..Sunny in the morning then a mix of sun and cloud with 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. High 23. Humidex 26. UV index 8 or very high. Morrisburg - Long Sault. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 22. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..Sunny in the morning then a mix of sun and cloud with 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. High 23. Humidex 26. UV index 8 or very high. Cornwall - Lancaster. Today..Sunny. Becoming a mix of sun and cloud this afternoon. High 22. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..Sunny in the morning then a mix of sun and cloud with 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. High 23. Humidex 26. UV index 8 or very high. Winchester - Newington. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Wind northeast 20 km/h. High 22. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..Sunny in the morning then a mix of sun and cloud with 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. High 23. Humidex 26. UV index 8 or very high. Maxville - Alexandria. Today..Sunny. Becoming a mix of sun and cloud this afternoon. Wind northeast 20 km/h. High 22. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..Sunny in the morning then a mix of sun and cloud with 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. High 23. Humidex 26. UV index 8 or very high. Plevna - Sharbot Lake - Western Lanark County. Today..A mix of sun and cloud. Wind east 20 km/h. High 21. UV index 8 or very high. Tonight..Clear. Low 9. Tuesday..A mix of sun and cloud. 30 percent chance of showers changing to 70 percent chance of showers in the afternoon. High 23. UV index 7 or high. Smiths Falls - Perth - Eastern Lanark County. Today..A mix of sun and cloud. Wind east 20 km/h. High 21. UV index 8 or very high. Tonight..Clear. Low 9. Tuesday..A mix of sun and cloud. 30 percent chance of showers early in the afternoon then 70 percent chance of showers late in the afternoon. High 23. UV index 8 or very high. Port Carling - Port Severn. Today..A mix of sun and cloud. High 22. UV index 8 or very high. Tonight..Clear. Low 12. Tuesday..A mix of sun and cloud. 30 percent chance of showers changing to 70 percent chance of showers near noon. High 22. UV index 8 or very high. Bracebridge - Gravenhurst. Today..A mix of sun and cloud. High 21. UV index 8 or very high. Tonight..Clear. Low 8. Tuesday..Mainly cloudy. 30 percent chance of showers changing to 70 percent chance of showers near noon. High 23. UV index 8 or very high. Town of Parry Sound - Rosseau - Killbear Park. Today..A mix of sun and cloud. High 22. UV index 8 or very high. Tonight..Clear. Low 12. Tuesday..Cloudy. 30 percent chance of showers changing to 70 percent chance of showers near noon. High 22. UV index 6 or high. Huntsville - Baysville. Today..A mix of sun and cloud. High 20. UV index 8 or very high. Tonight..Clear. Low 8. Tuesday..Mainly cloudy. 30 percent chance of showers changing to 70 percent chance of showers near noon. High 21. UV index 6 or high. Haliburton - Minden - Southern Haliburton County. Today..A mix of sun and cloud. High 21. UV index 8 or very high. Tonight..Clear. Low 8. Tuesday..Mainly cloudy. 30 percent chance of showers changing to 70 percent chance of showers near noon. High 23. UV index 8 or very high. Oxtongue Lake - Fort Irwin - Northern Haliburton County. Today..A mix of sun and cloud. High 20. UV index 8 or very high. Tonight..Clear. Low 8. Tuesday..Mainly cloudy. 30 percent chance of showers changing to 70 percent chance of showers near noon. High 21. UV index 6 or high. Barry's Bay - Killaloe. Today..A mix of sun and cloud. High 21. UV index 8 or very high. Tonight..Clear. Low 8. Tuesday..Increasing cloudiness. 30 percent chance of showers changing to 70 percent chance of showers in the afternoon. High 23. UV index 7 or high. Renfrew - Arnprior - Calabogie. Today..A mix of sun and cloud. High 21. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..A mix of sun and cloud. 30 percent chance of showers changing to 70 percent chance of showers in the afternoon. High 23. UV index 8 or very high. Petawawa - Pembroke - Cobden. Today..A mix of sun and cloud. High 21. UV index 8 or very high. Tonight..Clear. Low 10. Tuesday..Sunny early in the morning then a mix of sun and cloud with 30 percent chance of showers changing to 70 percent chance of showers in the afternoon. High 23. UV index 8 or very high. Western Algonquin Park - Lake of Two Rivers. Today..A mix of sun and cloud. High 20. UV index 8 or very high. Tonight..Clear. Low 8. Tuesday..Mainly cloudy. 30 percent chance of showers changing to 70 percent chance of showers near noon. High 21. UV index 6 or high. Deep River - Whitney - Eastern Algonquin Park. Today..A mix of sun and cloud. High 20. UV index 8 or very high. Tonight..Clear. Low 8. Tuesday..Mainly cloudy. 30 percent chance of showers changing to 70 percent chance of showers near noon. High 21. UV index 6 or high. Continued in next message... --- up 1 week, 3 hours, 46 minutes * Origin: Northern Realms (618:400/23) .