Subj : Southern Ontario Weather To : All From : Northern Realms Date : Mon May 06 2024 15:35:00 FPCN11 CWTO 061930 Forecasts for Southern Ontario and the National Capital Region issued by Environment Canada at 3:30 p.m. EDT Monday 6 May 2024 for tonight Tuesday and Tuesday night. The next scheduled forecast will be issued at 5:00 a.m. EDT Tuesday. City of Toronto. Tonight..Clear. Low 8. Tuesday..Sunny. High 18. UV index 8 or very high. Tuesday night..Increasing cloudiness early in the evening. 60 percent chance of showers late in the evening and overnight. Low 13. Windsor - Leamington - Essex County. Tonight..Clear. Wind northeast 20 km/h becoming light this evening. Low 10. Tuesday..Mainly cloudy. A few showers beginning late in the afternoon. Risk of a thunderstorm late in the afternoon. Wind becoming east 20 km/h late in the morning. High 22 except 14 near Lake Erie. Humidex 25. UV index 8 or very high. Tuesday night..A few showers ending near midnight then cloudy with 30 percent chance of showers. Risk of a thunderstorm early in the evening. Low 13. Chatham-Kent - Rondeau Park. Tonight..Clear. Low 9. Tuesday..A mix of sun and cloud. A few showers beginning late in the afternoon. Risk of a thunderstorm late in the afternoon. High 22 except 14 near Lake Erie. Humidex 25. UV index 8 or very high. Tuesday night..A few showers ending near midnight then cloudy with 30 percent chance of showers. Risk of a thunderstorm early in the evening. Low 13. Sarnia - Petrolia - Western Lambton County. Tonight..Clear. Low 7. Tuesday..Mainly sunny. Increasing cloudiness in the afternoon then a few showers. Risk of a thunderstorm late in the afternoon. Wind becoming southeast 20 km/h late in the afternoon. High 22. UV index 8 or very high. Tuesday night..A few showers ending near midnight then cloudy with 30 percent chance of showers. Risk of a thunderstorm early in the evening. Wind southeast 20 km/h becoming light in the evening. Low 12. Watford - Pinery Park - Eastern Lambton County. Tonight..Clear. Low 6. Tuesday..Sunny. Wind becoming southeast 20 km/h late in the afternoon. High 23. UV index 8 or very high. Tuesday night..A few showers ending near midnight then cloudy with 30 percent chance of showers. Risk of a thunderstorm early in the evening. Wind southeast 20 km/h becoming light in the evening. Low 13. Rodney - Shedden - Western Elgin County. Tonight..Clear. Low 7. Tuesday..Mainly sunny. High 21 except 14 near Lake Erie. UV index 8 or very high. Tuesday night..A few showers ending near midnight then cloudy with 30 percent chance of showers. Risk of a thunderstorm early in the evening. Low 12. St. Thomas - Aylmer - Eastern Elgin County. Tonight..Clear. Low 6. Tuesday..Sunny. Becoming a mix of sun and cloud late in the afternoon. High 21 except 14 near Lake Erie. UV index 8 or very high. Tuesday night..A few showers ending near midnight then cloudy with 30 percent chance of showers. Risk of a thunderstorm early in the evening. Low 12. Strathroy - Komoka - Western Middlesex County. Tonight..Clear. Low plus 5. Tuesday..Sunny. Becoming a mix of sun and cloud late in the afternoon. High 23. UV index 8 or very high. Tuesday night..A few showers ending near midnight then cloudy with 30 percent chance of showers. Risk of a thunderstorm early in the evening. Low 12. London - Parkhill - Eastern Middlesex County. Tonight..Clear. Low plus 5. Tuesday..Sunny. High 23. UV index 8 or very high. Tuesday night..A few showers ending near midnight then cloudy with 30 percent chance of showers. Risk of a thunderstorm early in the evening. Low 11. Simcoe - Delhi - Norfolk. Tonight..Clear. Low plus 5. Tuesday..Sunny. High 22 except 13 near Lake Erie. UV index 8 or very high. Tuesday night..Cloudy. A few showers beginning in the evening and ending after midnight. Risk of a thunderstorm late in the evening and after midnight. Low 10. Dunnville - Caledonia - Haldimand. Tonight..Clear. Low 6. Tuesday..Sunny. High 22. UV index 8 or very high. Tuesday night..Cloudy. A few showers beginning in the evening and ending after midnight. Risk of a thunderstorm late in the evening and after midnight. Low 11. Woodstock - Tillsonburg - Oxford County. Tonight..Clear. Low plus 5. Tuesday..Sunny. High 21. UV index 8 or very high. Tuesday night..Cloudy. A few showers beginning in the evening and ending after midnight. Risk of a thunderstorm late in the evening and after midnight. Low 10. Brantford - County of Brant. Tonight..Clear. Low plus 5. Tuesday..Sunny. High 21. UV index 8 or very high. Tuesday night..Cloudy. A few showers beginning in the evening and ending after midnight. Risk of a thunderstorm late in the evening and after midnight. Low 10. Niagara Falls - Welland - Southern Niagara Region. Tonight..Clear. Low 6. Tuesday..Sunny. High 22. UV index 8 or very high. Tuesday night..Cloudy. A few showers beginning in the evening and ending after midnight. Risk of a thunderstorm late in the evening and after midnight. Low 12. St. Catharines - Grimsby - Northern Niagara Region. Tonight..Clear. Low 6. Tuesday..Sunny. High 20 except 13 near Lake Ontario. UV index 8 or very high. Tuesday night..Mainly cloudy. A few showers beginning in the evening and ending after midnight. Risk of a thunderstorm late in the evening and after midnight. Low 10. City of Hamilton. Tonight..Clear. Low 6. Tuesday..Sunny. Wind becoming northeast 20 km/h late in the morning. High 20 except 13 near Lake Ontario. UV index 8 or very high. Tuesday night..Increasing cloudiness. A few showers beginning in the evening and ending after midnight. Risk of a thunderstorm late in the evening and after midnight. Wind northeast 20 km/h becoming light in the evening. Low 11. Burlington - Oakville. Tonight..Clear. Low 7. Tuesday..Sunny. High 17. UV index 8 or very high. Tuesday night..Increasing cloudiness early in the evening. 60 percent chance of showers late in the evening and overnight. Low 11. Halton Hills - Milton. Tonight..Clear. Low plus 5. Tuesday..Sunny. High 19. UV index 8 or very high. Tuesday night..Increasing cloudiness early in the evening. 60 percent chance of showers late in the evening and overnight. Low 12. Mississauga - Brampton. Tonight..Clear. Low 6. Tuesday..Sunny. High 19. UV index 8 or very high. Tuesday night..Increasing cloudiness early in the evening. 60 percent chance of showers late in the evening and overnight. Low 12. Caledon. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 19. UV index 8 or very high. Tuesday night..Increasing cloudiness. 60 percent chance of showers late in the evening and overnight. Low 12. Vaughan - Richmond Hill - Markham. Tonight..Clear. Low plus 5. Tuesday..Sunny. High 20. UV index 8 or very high. Tuesday night..Increasing cloudiness. 60 percent chance of showers late in the evening and overnight. Low 12. Newmarket - Georgina - Northern York Region. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 21. UV index 8 or very high. Tuesday night..Increasing cloudiness early in the evening. 60 percent chance of showers late in the evening and overnight. Low 12. Pickering - Oshawa - Southern Durham Region. Tonight..Clear. Low 6. Tuesday..Sunny. High 19. UV index 8 or very high. Tuesday night..Increasing cloudiness early in the evening. 60 percent chance of showers late in the evening and overnight. Low 12. Uxbridge - Beaverton - Northern Durham Region. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 21. UV index 8 or very high. Tuesday night..Increasing cloudiness. 60 percent chance of showers late in the evening and overnight. Low 12. Goderich - Bluewater - Southern Huron County. Tonight..Clear. Wind northwest 20 km/h becoming light this evening. Low plus 5. Tuesday..Sunny. High 23. UV index 8 or very high. Tuesday night..A few showers ending near midnight then cloudy with 30 percent chance of showers. Risk of a thunderstorm early in the evening. Low 11. Wingham - Blyth - Northern Huron County. Tonight..Clear. Low plus 5. Tuesday..Sunny. High 23. UV index 8 or very high. Tuesday night..Becoming cloudy in the evening with 60 percent chance of showers late in the evening and overnight. Low 11. Stratford - Mitchell - Southern Perth County. Tonight..Clear. Low plus 5. Tuesday..Sunny. High 22. UV index 8 or very high. Tuesday night..Becoming cloudy in the evening with 60 percent chance of showers late in the evening and overnight. Low 11. Listowel - Milverton - Northern Perth County. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 22. UV index 8 or very high. Tuesday night..Becoming cloudy in the evening with 60 percent chance of showers late in the evening and overnight. Low 11. Kitchener - Cambridge - Region of Waterloo. Tonight..Clear. Low plus 4. Tuesday..Sunny. Wind becoming east 20 km/h in the afternoon. High 20. UV index 8 or very high. Tuesday night..Increasing cloudiness early in the evening. 60 percent chance of showers late in the evening and overnight. Wind east 20 km/h becoming light in the evening. Low 9. Guelph - Erin - Southern Wellington County. Tonight..Clear. Low plus 4. Tuesday..Sunny. Wind becoming east 20 km/h in the afternoon. High 20. UV index 8 or very high. Tuesday night..Becoming cloudy in the evening with 60 percent chance of showers late in the evening and overnight. Wind east 20 km/h becoming light in the evening. Low 9. Mount Forest - Arthur - Northern Wellington County. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 21. UV index 8 or very high. Tuesday night..Becoming cloudy in the evening with 60 percent chance of showers late in the evening and overnight. Low 11. Orangeville - Grand Valley - Southern Dufferin County. Tonight..Clear. Low plus 5. Tuesday..Sunny. High 20. UV index 8 or very high. Tuesday night..Increasing cloudiness. 60 percent chance of showers late in the evening and overnight. Low 12. Shelburne - Mansfield - Northern Dufferin County. Tonight..Clear. Low plus 5. Tuesday..Sunny. High 20. UV index 8 or very high. Tuesday night..Becoming cloudy late in the evening with 60 percent chance of showers late in the evening and overnight. Low 12. Innisfil - New Tecumseth - Angus. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 21. UV index 8 or very high. Tuesday night..Increasing cloudiness early in the evening. 60 percent chance of showers late in the evening and overnight. Low 10. Saugeen Shores - Kincardine - Southern Bruce County. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 22. UV index 8 or very high. Tuesday night..Cloudy. 60 percent chance of showers late in the evening and overnight. Low 10. Bruce Peninsula - Sauble Beach - Tobermory. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 19. UV index 8 or very high. Tuesday night..Increasing cloudiness early in the evening. 60 percent chance of showers late in the evening and overnight. Low 10. Hanover - Dundalk - Southern Grey County. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 21. UV index 8 or very high. Tuesday night..Becoming cloudy late in the evening with 60 percent chance of showers late in the evening and overnight. Low 10. Owen Sound - Blue Mountains - Northern Grey County. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 21 except 14 near Georgian Bay. UV index 8 or very high. Tuesday night..Becoming cloudy in the evening with 60 percent chance of showers late in the evening and overnight. Low 9. Barrie - Collingwood - Hillsdale. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 21. UV index 8 or very high. Tuesday night..Increasing cloudiness. 60 percent chance of showers late in the evening and overnight. Low 11. Midland - Coldwater - Orr Lake. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 19. UV index 8 or very high. Tuesday night..Increasing cloudiness. 60 percent chance of showers late in the evening and overnight. Low 10. Orillia - Lagoon City - Washago. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 20. UV index 8 or very high. Tuesday night..Increasing cloudiness. 60 percent chance of showers late in the evening and overnight. Low 12. Cobourg - Colborne - Western Northumberland County. Tonight..Clear. Low 6. Tuesday..Sunny. High 20. UV index 8 or very high. Tuesday night..A few clouds. Increasing cloudiness near midnight then 40 percent chance of showers overnight. Low 12. Belleville - Quinte West - Eastern Northumberland County. Tonight..Clear. Low 6. Tuesday..Sunny. High 21. UV index 8 or very high. Tuesday night..A few clouds. Increasing cloudiness near midnight then 40 percent chance of showers overnight. Low 12. Picton - Sandbanks Park. Tonight..Clear. Low 7. Tuesday..Sunny. High 21. UV index 8 or very high. Tuesday night..A few clouds. Increasing cloudiness near midnight then 40 percent chance of showers before morning. Low 10. Napanee - Consecon. Tonight..Clear. Low 7. Tuesday..Sunny. High 21. UV index 8 or very high. Tuesday night..A few clouds. Increasing cloudiness near midnight then 40 percent chance of showers before morning. Low 10. Kingston - Odessa - Frontenac Islands. Tonight..Clear. Wind south 20 km/h becoming light this evening. Low 6. Tuesday..Sunny. High 21. UV index 8 or very high. Tuesday night..A few clouds. Increasing cloudiness after midnight then 40 percent chance of showers before morning. Low 10. Lindsay - Southern Kawartha Lakes. Tonight..Clear. Low plus 5. Tuesday..Sunny. High 22. UV index 8 or very high. Tuesday night..Increasing cloudiness. 40 percent chance of showers overnight. Low 8. Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 22. UV index 8 or very high. Tuesday night..A few clouds. Increasing cloudiness near midnight then 40 percent chance of showers overnight. Low 8. Peterborough City - Lakefield - Southern Peterborough County. Tonight..Clear. Low plus 5. Tuesday..Sunny. High 22. UV index 8 or very high. Tuesday night..Increasing cloudiness. 40 percent chance of showers overnight. Low 8. Apsley - Woodview - Northern Peterborough County. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 23. UV index 8 or very high. Tuesday night..Increasing cloudiness. 40 percent chance of showers overnight. Low 8. Stirling - Tweed - Madoc. Tonight..Clear. Low 6. Tuesday..Sunny. High 22. UV index 8 or very high. Tuesday night..A few clouds. Increasing cloudiness after midnight then 40 percent chance of showers before morning. Low 11. Tamworth - Sydenham - South Frontenac. Tonight..Clear. Low 6. Tuesday..Sunny. High 22. UV index 8 or very high. Tuesday night..Clear. Increasing cloudiness after midnight then 40 percent chance of showers before morning. Low 11. Kaladar - Bannockburn - Bon Echo Park. Tonight..Clear. Low plus 2. Tuesday..Sunny. High 22. UV index 7 or high. Tuesday night..A few clouds. Increasing cloudiness after midnight then 40 percent chance of showers before morning. Low 8. Bancroft - Hastings Highlands - Denbigh. Tonight..Clear. Low plus 2. Tuesday..Sunny. High 22. UV index 7 or high. Tuesday night..A few clouds. Increasing cloudiness after midnight then 40 percent chance of showers before morning. Low 8. Gananoque - Mallorytown. Tonight..Clear. Low 6. Tuesday..Sunny. High 22. UV index 8 or very high. Tuesday night..A few clouds. Increasing cloudiness after midnight. Low 8. Brockville - Prescott. Tonight..Clear. Low 6. Tuesday..Sunny. High 22. UV index 7 or high. Tuesday night..Clear. Increasing cloudiness after midnight. Low 8. Westport - Charleston Lake. Tonight..Clear. Low 6. Tuesday..Sunny. High 22. UV index 8 or very high. Tuesday night..A few clouds. Increasing cloudiness after midnight. Low 8. Merrickville-Wolford - Kemptville. Tonight..Clear. Low 6. Tuesday..Sunny. High 22. UV index 7 or high. Tuesday night..A few clouds. Low 8. Ottawa North - Kanata - Orl‚ans. Tonight..Clear. Wind west 20 km/h becoming light this evening. Low plus 5. Tuesday..Mainly sunny. High 22. UV index 7 or high. Tuesday night..A few clouds. Low 8. Ottawa South - Richmond - Metcalfe. Tonight..Clear. Wind west 20 km/h becoming light this evening. Low plus 5. Tuesday..Mainly sunny. High 22. UV index 7 or high. Tuesday night..A few clouds. Low 8. Gatineau. Tonight..Clear. Wind west 20 km/h becoming light this evening. Low plus 5. Tuesday..Increasing cloudiness. High 22. UV index 7 or high. Tuesday night..A few clouds. Wind becoming east 20 km/h before morning. Low 9. Prescott and Russell. Tonight..Clear. Low plus 5. Tuesday..Sunny. Becoming a mix of sun and cloud late in the morning. High 21. UV index 7 or high. Tuesday night..A few clouds. Low 8. Morrisburg - Long Sault. Tonight..Clear. Low 6. Tuesday..Sunny. High 22. UV index 7 or high. Tuesday night..A few clouds. Low 7. Cornwall - Lancaster. Tonight..Clear. Low 6. Tuesday..Sunny. Becoming a mix of sun and cloud near noon. High 22. UV index 7 or high. Tuesday night..Clear. Low 7. Winchester - Newington. Tonight..Clear. Low 6. Tuesday..Mainly sunny. High 22. UV index 7 or high. Tuesday night..A few clouds. Low 7. Maxville - Alexandria. Tonight..Clear. Low 6. Tuesday..Sunny. Becoming a mix of sun and cloud late in the morning. High 21. UV index 7 or high. Tuesday night..A few clouds. Low 7. Plevna - Sharbot Lake - Western Lanark County. Tonight..Clear. Low plus 5. Tuesday..Mainly sunny. High 22. UV index 7 or high. Tuesday night..A few clouds. Increasing cloudiness overnight then 40 percent chance of showers before morning. Low 9. Smiths Falls - Perth - Eastern Lanark County. Tonight..Clear. Low plus 5. Tuesday..Sunny. High 22. UV index 7 or high. Tuesday night..A few clouds. Increasing cloudiness overnight. Low 9. Port Carling - Port Severn. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 21. UV index 8 or very high. Tuesday night..A few clouds. Increasing cloudiness near midnight then 40 percent chance of showers overnight. Low 11. Bracebridge - Gravenhurst. Tonight..Clear. Low plus 3. Tuesday..Sunny. High 22. UV index 8 or very high. Tuesday night..A few clouds. Increasing cloudiness near midnight then 40 percent chance of showers overnight. Low 10. Town of Parry Sound - Rosseau - Killbear Park. Tonight..Clear. Low plus 3. Tuesday..Sunny. High 21. UV index 8 or very high. Tuesday night..Increasing cloudiness. 40 percent chance of showers overnight. Low 10. Huntsville - Baysville. Tonight..Clear. Low plus 2. Tuesday..Sunny. High 22. UV index 7 or high. Tuesday night..A few clouds. Increasing cloudiness after midnight then 40 percent chance of showers overnight. Low 10. Haliburton - Minden - Southern Haliburton County. Tonight..Clear. Low plus 3. Tuesday..Sunny. High 22. UV index 7 or high. Tuesday night..Increasing cloudiness. 40 percent chance of showers overnight. Low 9. Oxtongue Lake - Fort Irwin - Northern Haliburton County. Tonight..Clear. Low plus 2. Tuesday..Sunny. High 21. UV index 7 or high. Tuesday night..A few clouds. Increasing cloudiness near midnight then 40 percent chance of showers overnight. Low 9. Barry's Bay - Killaloe. Tonight..Clear. Low plus 2. Tuesday..Mainly sunny. High 21. UV index 7 or high. Tuesday night..Increasing cloudiness. 40 percent chance of showers before morning. Low 7. Renfrew - Arnprior - Calabogie. Tonight..Clear. Low plus 4. Tuesday..Mainly sunny. High 22. UV index 7 or high. Tuesday night..Clear in the evening then partly cloudy with 40 percent chance of showers before morning. Low 7. Petawawa - Pembroke - Cobden. Tonight..Clear. Wind west 20 km/h becoming light this evening. Low plus 3. Tuesday..A mix of sun and cloud. High 22. UV index 7 or high. Tuesday night..Partly cloudy. 40 percent chance of showers before morning. Low 7. Western Algonquin Park - Lake of Two Rivers. Tonight..Clear. Low plus 1. Tuesday..Sunny. High 20. UV index 7 or high. Tuesday night..Increasing cloudiness. 40 percent chance of showers before morning. Low 6. Deep River - Whitney - Eastern Algonquin Park. Tonight..Clear. Low plus 1. Tuesday..Sunny. High 20. UV index 7 or high. Tuesday night..Clear early in the evening then partly cloudy with 40 percent chance of showers before morning. Low 6. Bayfield Inlet - Dunchurch. Tonight..Clear. Low plus 4. Tuesday..Sunny. High 21. UV index 7 or high. Tuesday night..A few clouds. Increasing cloudiness after midnight then 40 percent chance of showers overnight. Low 12. South River - Burk's Falls. Tonight..Clear. Low plus 2. Tuesday..Sunny. High 21. UV index 7 or high. Tuesday night..A few clouds. Increasing cloudiness after midnight then 40 percent chance of showers overnight. Low 12. End $$$$^^ --- up 6 days, 18 hours, 16 minutes * Origin: Northern Realms (1:229/664) .