Subj : Southern Ontario Weather To : All From : Northern Realms Date : Mon May 19 2025 11:05:00 FPCN11 CWTO 191500 Forecasts for Southern Ontario and the National Capital Region issued by Environment Canada at 11:00 a.m. EDT Monday 19 May 2025 for today and Tuesday. The next scheduled forecast will be issued at 3:30 p.m. EDT. City of Toronto. Today..Sunny. Wind north 20 km/h gusting to 40. High 15. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light late this evening. Low plus 5. Tuesday..Sunny. Wind east 20 km/h becoming light late in the morning. High 15. UV index 8 or very high. Windsor - Leamington - Essex County. Today..Mainly sunny. Wind northeast 30 km/h. High 16. UV index 8 or very high. Tonight..Clear. Wind northeast 20 km/h gusting to 40 becoming light late this evening. Low 7. Tuesday..Increasing cloudiness. Wind east 20 km/h gusting to 40. High 14. UV index 8 or very high. Chatham-Kent - Rondeau Park. Today..Clearing this afternoon. Wind north 30 km/h. High 15. UV index 8 or very high. Tonight..Clear. Wind north 30 km/h becoming light late this evening. Low plus 5. Tuesday..Sunny. Increasing cloudiness in the afternoon. Wind east 20 km/h gusting to 40. High 15. UV index 8 or very high. Sarnia - Petrolia - Western Lambton County. Today..Clearing this afternoon. Wind north 30 km/h gusting to 50. High 12. UV index 8 or very high. Tonight..Clear. Wind north 30 km/h gusting to 50 becoming light near midnight. Low plus 3 with risk of frost. Tuesday..Sunny. Becoming a mix of sun and cloud late in the morning. Wind east 20 km/h becoming north 30 late in the morning. High 18. UV index 8 or very high. Watford - Pinery Park - Eastern Lambton County. Today..Mainly sunny. High 12. UV index 8 or very high. Tonight..Clear. Wind north 20 km/h becoming light late this evening. Low plus 3 with risk of frost. Tuesday..Sunny. Wind northeast 20 km/h gusting to 40. High 18. UV index 8 or very high. Rodney - Shedden - Western Elgin County. Today..Clearing this afternoon. Wind north 30 km/h. High 16. UV index 8 or very high. Tonight..Clear. Wind north 30 km/h becoming light this evening. Low plus 4. Tuesday..Sunny. Becoming a mix of sun and cloud late in the morning. Wind east 20 km/h gusting to 40 becoming light in the afternoon. Wind becoming east 20 gusting to 40 late in the afternoon. High 19. UV index 8 or very high. St. Thomas - Aylmer - Eastern Elgin County. Today..Clearing this afternoon. Wind north 20 km/h. High 17. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 4. Tuesday..Sunny. Becoming a mix of sun and cloud late in the morning. Wind east 20 km/h gusting to 40. High 19. UV index 8 or very high. Strathroy - Komoka - Western Middlesex County. Today..Clearing this afternoon. Wind becoming north 20 km/h this afternoon. High 15. UV index 8 or very high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 3 with risk of frost. Tuesday..Sunny. Becoming a mix of sun and cloud late in the morning. Wind becoming east 20 km/h gusting to 40 in the morning. High 18. UV index 8 or very high. London - Parkhill - Eastern Middlesex County. Today..Clearing this afternoon. Wind becoming north 20 km/h late this afternoon. High 16. UV index 8 or very high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 3 with risk of frost. Tuesday..Sunny. Becoming a mix of sun and cloud late in the morning. Wind east 20 km/h gusting to 40. High 18. UV index 8 or very high. Simcoe - Delhi - Norfolk. Today..Mainly sunny. Wind becoming northwest 20 km/h this afternoon. High 17. UV index 7 or high. Tonight..Clear. Low plus 4. Tuesday..Sunny. Becoming a mix of sun and cloud in the afternoon. Wind east 20 km/h gusting to 40. High 18. UV index 8 or very high. Dunnville - Caledonia - Haldimand. Today..Mainly sunny. Wind becoming northwest 20 km/h this afternoon. High 17. UV index 7 or high. Tonight..Clear. Low plus 5. Tuesday..Sunny. Wind northeast 20 km/h gusting to 40. High 16. UV index 8 or very high. Woodstock - Tillsonburg - Oxford County. Today..A mix of sun and cloud. Becoming sunny this afternoon. High 17. UV index 7 or high. Tonight..Clear. Low plus 3 with risk of frost. Tuesday..Sunny. Becoming a mix of sun and cloud in the afternoon. Wind becoming east 20 km/h gusting to 40 in the morning. High 17. UV index 8 or very high. Brantford - County of Brant. Today..Mainly sunny. Wind becoming north 20 km/h this afternoon. High 17. UV index 7 or high. Tonight..Clear. Low plus 3 with risk of frost. Tuesday..Sunny. Wind becoming east 20 km/h gusting to 40 in the morning. High 17. UV index 8 or very high. Niagara Falls - Welland - Southern Niagara Region. Today..Sunny. High 15. UV index 7 or high. Tonight..Clear. Low 6. Tuesday..Sunny. Wind northeast 20 km/h gusting to 40 becoming light late in the morning. Wind becoming northeast 20 in the afternoon. High 15. UV index 8 or very high. St. Catharines - Grimsby - Northern Niagara Region. Today..Sunny. High 14. UV index 7 or high. Tonight..Clear. Low 6. Tuesday..Sunny. Wind northeast 20 km/h. High 15. UV index 8 or very high. City of Hamilton. Today..Mainly sunny. High 16. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light late this evening. Low plus 5. Tuesday..Sunny. Wind northeast 20 km/h gusting to 40. High 16. UV index 8 or very high. Burlington - Oakville. Today..Sunny. Wind north 20 km/h becoming light this afternoon. Wind becoming north 30 late this afternoon. High 15. UV index 7 or high. Tonight..Clear. Wind north 30 km/h becoming light late this evening. Wind becoming north 20 before morning. Low plus 4. Tuesday..Sunny. Wind north 20 km/h becoming east 20 in the morning. High 16. UV index 8 or very high. Halton Hills - Milton. Today..Sunny. Wind north 20 km/h. High 15. UV index 7 or high. Tonight..Clear. Wind north 20 km/h. Low plus 3 with risk of frost. Tuesday..Sunny. Wind north 20 km/h becoming east 20 in the morning. High 16. UV index 8 or very high. Mississauga - Brampton. Today..Sunny. Wind north 20 km/h gusting to 40. High 15. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light late this evening. Low plus 4. Tuesday..Sunny. Wind east 20 km/h becoming light late in the morning. High 16. UV index 8 or very high. Caledon. Today..Sunny. Wind north 20 km/h gusting to 40. High 14. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light late this evening. Low plus 2 with patchy frost. Tuesday..Sunny. Wind northeast 20 km/h. High 16. UV index 8 or very high. Vaughan - Richmond Hill - Markham. Today..Sunny. Wind north 20 km/h gusting to 40. High 15. UV index 7 or high. Tonight..Clear. Wind north 20 km/h. Low plus 3 with risk of frost. Tuesday..Sunny. Wind northeast 20 km/h becoming light late in the morning. High 18. UV index 8 or very high. Newmarket - Georgina - Northern York Region. Today..Sunny. Wind north 20 km/h gusting to 40. High 14. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 2 with patchy frost. Tuesday..Sunny. Wind northeast 20 km/h. High 18. UV index 8 or very high. Pickering - Oshawa - Southern Durham Region. Today..A mix of sun and cloud. Becoming sunny this afternoon. Wind north 20 km/h gusting to 40. High 15. UV index 7 or high. Tonight..Clear. Wind north 20 km/h. Low plus 3 with risk of frost. Tuesday..Sunny. Wind northeast 20 km/h becoming light late in the morning. High 18. UV index 8 or very high. Uxbridge - Beaverton - Northern Durham Region. Today..Sunny. Wind north 20 km/h gusting to 40. High 14. UV index 7 or high. Tonight..Clear. Wind north 20 km/h gusting to 40 becoming light this evening. Low plus 2 with patchy frost. Tuesday..Sunny. Wind northeast 20 km/h. High 18. UV index 8 or very high. Goderich - Bluewater - Southern Huron County. Today..Sunny. Wind north 30 km/h gusting to 50. High 15. UV index 7 or high. Tonight..Clear. Wind north 30 km/h gusting to 50 becoming light late this evening. Low plus 1 with patchy frost. Tuesday..Sunny. Becoming a mix of sun and cloud in the afternoon. Wind east 20 km/h gusting to 40 becoming north 20 late in the morning then becoming east 20. High 18. UV index 8 or very high. Wingham - Blyth - Northern Huron County. Today..Sunny. Wind becoming north 20 km/h this afternoon. High 12. UV index 7 or high. Tonight..Clear. Wind northeast 20 km/h becoming light this evening. Low plus 1 with patchy frost. Tuesday..Sunny. Wind east 20 km/h. High 18. UV index 8 or very high. Stratford - Mitchell - Southern Perth County. Today..A mix of sun and cloud. Becoming sunny this afternoon. Wind northwest 20 km/h. High 15. UV index 7 or high. Tonight..Clear. Wind northeast 20 km/h becoming light late this evening. Low plus 1 with patchy frost. Tuesday..Sunny. Becoming a mix of sun and cloud in the afternoon. Wind east 20 km/h gusting to 40. High 18. UV index 8 or very high. Listowel - Milverton - Northern Perth County. Today..Sunny. Wind becoming north 20 km/h late this afternoon. High 13. UV index 7 or high. Tonight..Clear. Wind northeast 20 km/h becoming light late this evening. Low plus 1 with patchy frost. Tuesday..Sunny. Wind east 20 km/h. High 18. UV index 8 or very high. Kitchener - Cambridge - Region of Waterloo. Today..A mix of sun and cloud. Becoming sunny this afternoon. Wind becoming north 20 km/h late this afternoon. High 15. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light late this evening. Low plus 2 with patchy frost. Tuesday..Sunny. Wind east 20 km/h becoming light late in the morning. Wind becoming east 30 late in the afternoon. High 17. UV index 8 or very high. Guelph - Erin - Southern Wellington County. Today..Sunny. High 15. UV index 7 or high. Tonight..Clear. Low plus 2 with patchy frost. Tuesday..Sunny. Wind east 20 km/h. High 17. UV index 8 or very high. Mount Forest - Arthur - Northern Wellington County. Today..Sunny. Wind north 20 km/h. High 11. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 1 with patchy frost. Tuesday..Sunny. Wind east 20 km/h. High 16. UV index 8 or very high. Orangeville - Grand Valley - Southern Dufferin County. Today..Sunny. Wind north 20 km/h. High 12. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 1 with patchy frost. Tuesday..Sunny. Wind becoming northeast 20 km/h in the afternoon. High 16. UV index 8 or very high. Shelburne - Mansfield - Northern Dufferin County. Today..Sunny. Wind north 20 km/h. High 12. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light late this evening. Low plus 1 with patchy frost. Tuesday..Sunny. Wind northeast 20 km/h. High 16. UV index 8 or very high. Innisfil - New Tecumseth - Angus. Today..Sunny. Wind north 20 km/h gusting to 40. High 12. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 1 with patchy frost. Tuesday..Sunny. Wind northeast 20 km/h becoming light late in the morning. High 18. UV index 8 or very high. Saugeen Shores - Kincardine - Southern Bruce County. Today..Sunny. Wind north 30 km/h. High 11. UV index 7 or high. Tonight..Clear. Wind north 30 km/h becoming light this evening. Low plus 1 with patchy frost. Tuesday..Sunny. Wind northeast 20 km/h gusting to 40. High 15. UV index 8 or very high. Bruce Peninsula - Sauble Beach - Tobermory. Today..Clearing this afternoon. Wind north 30 km/h. High 11. UV index 7 or high. Tonight..Clear. Wind becoming northeast 20 km/h late this evening. Low plus 3 with risk of frost. Tuesday..Sunny. Wind northeast 20 km/h gusting to 40. High 15. UV index 8 or very high. Hanover - Dundalk - Southern Grey County. Today..Sunny. Wind north 20 km/h. High 11. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 1 with patchy frost. Tuesday..Sunny. Wind northeast 20 km/h. High 15. UV index 8 or very high. Owen Sound - Blue Mountains - Northern Grey County. Today..Clearing this afternoon. Wind north 30 km/h. High 11. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 1 with patchy frost. Tuesday..Sunny. Wind northeast 20 km/h gusting to 40. High 15. UV index 8 or very high. Barrie - Collingwood - Hillsdale. Today..Sunny. Wind north 20 km/h gusting to 40. High 11. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 2 with patchy frost. Tuesday..Sunny. Wind northeast 20 km/h. High 17. UV index 8 or very high. Midland - Coldwater - Orr Lake. Today..Sunny. Wind north 20 km/h gusting to 40. High 12. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light after midnight. Low plus 2 with patchy frost. Tuesday..Sunny. Wind northeast 20 km/h becoming light late in the morning. High 17. UV index 8 or very high. Orillia - Lagoon City - Washago. Today..Sunny. Wind north 20 km/h gusting to 40. High 14. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light after midnight. Low plus 2 with patchy frost. Tuesday..Sunny. Wind northeast 20 km/h. High 17. UV index 8 or very high. Cobourg - Colborne - Western Northumberland County. Today..A mix of sun and cloud. Wind north 20 km/h. High 15. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Wind becoming north 20 gusting to 40 before morning. Low plus 4. Tuesday..Increasing cloudiness. Wind north 20 km/h gusting to 40 becoming light late in the morning. High 18. UV index 7 or high. Belleville - Quinte West - Eastern Northumberland County. Today..A mix of sun and cloud. Wind north 20 km/h. High 15. UV index 7 or high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Wind becoming north 20 gusting to 40 before morning. Low plus 5. Tuesday..Increasing cloudiness. Wind north 20 km/h gusting to 40 becoming light late in the morning. High 18. UV index 7 or high. Picton - Sandbanks Park. Today..A mix of sun and cloud. Wind north 20 km/h. High 15. UV index 7 or high. Tonight..Partly cloudy. Becoming clear this evening. Wind north 20 km/h becoming light this evening. Wind becoming north 20 gusting to 40 before morning. Low 6. Tuesday..Increasing cloudiness. Wind north 20 km/h gusting to 40 becoming light late in the morning. High 18. UV index 7 or high. Napanee - Consecon. Today..A mix of sun and cloud. Wind north 20 km/h. High 15. UV index 7 or high. Tonight..Partly cloudy. Becoming clear this evening. Wind north 20 km/h becoming light this evening. Wind becoming north 20 gusting to 40 before morning. Low plus 5. Tuesday..Increasing cloudiness. Wind north 20 km/h gusting to 40 becoming light late in the morning. High 18. UV index 7 or high. Kingston - Odessa - Frontenac Islands. Today..Cloudy. Becoming a mix of sun and cloud this afternoon. Wind north 20 km/h gusting to 40. High 15. UV index 5 or moderate. Tonight..Partly cloudy. Wind north 20 km/h gusting to 40 becoming light this evening. Wind becoming north 20 gusting to 40 before morning. Low 6. Tuesday..A mix of sun and cloud. Becoming cloudy late in the morning. Wind north 20 km/h gusting to 40 becoming light in the afternoon. Wind becoming northeast 20 late in the afternoon. High 18. UV index 6 or high. Lindsay - Southern Kawartha Lakes. Today..Sunny. Wind north 20 km/h. High 14. UV index 6 or high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 2 with patchy frost. Tuesday..Sunny. Increasing cloudiness late in the afternoon. Wind northeast 20 km/h. High 19. UV index 8 or very high. Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes. Today..Sunny. Wind north 30 km/h. High 14. UV index 6 or high. Tonight..Clear. Wind north 30 km/h becoming light this evening. Low plus 1 with patchy frost. Tuesday..Sunny. Increasing cloudiness late in the afternoon. Wind northeast 20 km/h becoming light late in the morning. High 19. UV index 8 or very high. Peterborough City - Lakefield - Southern Peterborough County. Today..A mix of sun and cloud. Becoming sunny this afternoon. Wind north 20 km/h. High 15. UV index 6 or high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 2 with patchy frost. Tuesday..Mainly sunny. Increasing cloudiness late in the afternoon. Wind northeast 20 km/h becoming light late in the morning. High 19. UV index 8 or very high. Apsley - Woodview - Northern Peterborough County. Today..Clearing this afternoon. Wind north 20 km/h gusting to 40. High 14. UV index 6 or high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 2 with patchy frost. Tuesday..Increasing cloudiness near noon. Wind north 20 km/h. High 19. UV index 8 or very high. Stirling - Tweed - Madoc. Today..Clearing this afternoon. Wind north 20 km/h. High 15. UV index 6 or high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 4. Tuesday..Increasing cloudiness. Wind north 20 km/h gusting to 40 becoming light late in the morning. High 18. UV index 7 or high. Tamworth - Sydenham - South Frontenac. Today..Cloudy. Becoming a mix of sun and cloud this afternoon. Wind north 20 km/h. High 14. UV index 5 or moderate. Tonight..Partly cloudy. Wind north 20 km/h. Low plus 5. Tuesday..A mix of sun and cloud. Becoming cloudy late in the morning. Wind north 20 km/h gusting to 40 becoming light in the afternoon. Wind becoming northeast 20 late in the afternoon. High 18. UV index 6 or high. Kaladar - Bannockburn - Bon Echo Park. Today..Cloudy. Clearing late this afternoon. Wind north 20 km/h gusting to 40. High 14. UV index 5 or moderate. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 2 with patchy frost. Tuesday..Increasing cloudiness in the morning. Wind north 20 km/h gusting to 40 becoming light in the afternoon. High 18. UV index 6 or high. Bancroft - Hastings Highlands - Denbigh. Today..Clearing this afternoon. Wind north 20 km/h gusting to 40. High 13. UV index 6 or high. Tonight..Clear. Wind north 20 km/h gusting to 40 becoming light this evening. Wind becoming north 20 before morning. Low plus 1. Tuesday..Increasing cloudiness. Wind north 20 km/h gusting to 40 becoming light in the afternoon. Wind becoming northeast 20 late in the afternoon. High 18. UV index 7 or high. Gananoque - Mallorytown. Today..Overcast. Wind north 20 km/h gusting to 40. High 14. UV index 3 or moderate. Tonight..Mainly cloudy. Wind north 20 km/h gusting to 40 becoming light this evening. Wind becoming north 20 before morning. Low 6. Tuesday..Mainly cloudy. Wind north 20 km/h. High 17. UV index 5 or moderate. Brockville - Prescott. Today..Overcast. Wind northwest 20 km/h gusting to 40. High 14. UV index 3 or moderate. Tonight..Cloudy. Wind north 20 km/h. Low 6. Tuesday..Cloudy. Wind north 20 km/h. High 15. UV index 5 or moderate. Westport - Charleston Lake. Today..Overcast. Wind north 20 km/h gusting to 40. High 14. UV index 3 or moderate. Tonight..Mainly cloudy. Wind north 20 km/h. Low 6. Tuesday..Mainly cloudy. Wind north 20 km/h. High 17. UV index 5 or moderate. Merrickville-Wolford - Kemptville. Today..Overcast. Wind northwest 20 km/h gusting to 40. High 13. UV index 3 or moderate. Tonight..Overcast. Wind north 20 km/h gusting to 40 becoming light this evening. Wind becoming north 20 before morning. Low 6. Tuesday..Cloudy. Wind north 20 km/h becoming light late in the morning. High 16. UV index 5 or moderate. Ottawa North - Kanata - Orl‚ans. Today..Overcast. Wind northwest 20 km/h gusting to 40. High 13. UV index 3 or moderate. Tonight..Cloudy. Wind north 20 km/h gusting to 40 becoming light this evening. Wind becoming north 20 before morning. Low 6. Tuesday..Cloudy. Wind north 20 km/h becoming light late in the morning. High 15. UV index 5 or moderate. Ottawa South - Richmond - Metcalfe. Today..Overcast. Wind northwest 20 km/h gusting to 40. High 13. UV index 3 or moderate. Tonight..Cloudy. Wind north 20 km/h gusting to 40 becoming light this evening. Wind becoming north 20 before morning. Low 6. Tuesday..Cloudy. Wind north 20 km/h becoming light late in the morning. High 15. UV index 5 or moderate. Gatineau. Today..Overcast. Wind northwest 20 km/h gusting to 40. High 13. UV index 3 or moderate. Tonight..Overcast. Low 6. Tuesday..Overcast. High 15. UV index 3 or moderate. Prescott and Russell. Today..Overcast. Wind northwest 20 km/h gusting to 40. High 13. UV index 3 or moderate. Tonight..Overcast. Wind north 20 km/h gusting to 40 becoming light this evening. Wind becoming north 20 before morning. Low 7. Tuesday..Overcast. Wind north 20 km/h becoming light in the morning. High 15. UV index 4 or moderate. Morrisburg - Long Sault. Today..Overcast. Wind northwest 20 km/h gusting to 40. High 12. UV index 3 or moderate. Tonight..Overcast. Wind northwest 20 km/h gusting to 40 becoming light this evening. Wind becoming north 20 before morning. Low 7. Tuesday..Cloudy. Wind north 20 km/h becoming east 20 early in the afternoon. High 15. UV index 5 or moderate. Cornwall - Lancaster. Today..Overcast. Wind northwest 20 km/h gusting to 40. High 12. UV index 3 or moderate. Tonight..Overcast. Wind north 20 km/h becoming light this evening. Low 7. Tuesday..Cloudy. Wind becoming east 20 km/h late in the afternoon. High 15. UV index 5 or moderate. Winchester - Newington. Today..Overcast. Wind northwest 20 km/h gusting to 40. High 13. UV index 3 or moderate. Tonight..Overcast. Wind northwest 20 km/h gusting to 40 becoming light this evening. Wind becoming north 20 before morning. Low 6. Tuesday..Cloudy. Wind north 20 km/h becoming light in the morning. High 15. UV index 5 or moderate. Maxville - Alexandria. Today..Overcast. Wind northwest 20 km/h gusting to 40. High 12. UV index 3 or moderate. Tonight..Overcast. Wind north 20 km/h gusting to 40 becoming light this evening. Wind becoming north 20 before morning. Low 7. Tuesday..Cloudy. Wind north 20 km/h becoming light in the morning. High 15. UV index 4 or moderate. Plevna - Sharbot Lake - Western Lanark County. Today..Cloudy. Becoming a mix of sun and cloud this afternoon. Wind north 20 km/h gusting to 40. High 14. UV index 5 or moderate. Tonight..A few clouds. Wind north 20 km/h gusting to 40 becoming light this evening. Wind becoming north 20 gusting to 40 before morning. Low plus 3 with risk of frost. Tuesday..A mix of sun and cloud. Becoming cloudy late in the morning. Wind north 20 km/h gusting to 40 becoming light in the afternoon. High 17. UV index 5 or moderate. Smiths Falls - Perth - Eastern Lanark County. Today..Overcast. Wind northwest 20 km/h gusting to 40. High 14. UV index 3 or moderate. Tonight..Cloudy. Wind north 20 km/h. Low plus 5. Tuesday..Cloudy. Wind north 20 km/h becoming light late in the morning. High 16. UV index 5 or moderate. Port Carling - Port Severn. Today..Sunny. Wind north 30 km/h. High 14. UV index 6 or high. Tonight..Clear. Wind north 20 km/h becoming light late this evening. Low plus 2. Tuesday..Sunny. Wind northeast 20 km/h. High 19. UV index 7 or high. Bracebridge - Gravenhurst. Today..Sunny. Wind north 20 km/h. High 14. UV index 6 or high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 2. Tuesday..Sunny. Wind northeast 20 km/h. High 19. UV index 7 or high. Town of Parry Sound - Rosseau - Killbear Park. Today..Sunny. Wind north 20 km/h gusting to 40. High 14. UV index 6 or high. Tonight..Clear. Wind north 20 km/h gusting to 40 becoming light this evening. Wind becoming northeast 20 gusting to 40 late this evening. Low plus 2. Tuesday..Sunny. Wind northeast 20 km/h gusting to 40 becoming light late in the morning. Wind becoming northeast 30 in the afternoon. High 19. UV index 7 or high. Huntsville - Baysville. Today..A mix of sun and cloud. Becoming sunny this afternoon. Wind north 20 km/h gusting to 40. High 14. UV index 6 or high. Tonight..Clear. Wind north 20 km/h gusting to 40 becoming light this evening. Wind becoming northeast 20 before morning. Low plus 1. Tuesday..Sunny. Wind northeast 20 km/h. High 19. UV index 7 or high. Haliburton - Minden - Southern Haliburton County. Today..Clearing this afternoon. Wind north 20 km/h gusting to 40. High 13. UV index 6 or high. Tonight..Clear. Wind north 20 km/h becoming light this evening. Low plus 1. Tuesday..Sunny. Becoming a mix of sun and cloud in the afternoon. Wind north 20 km/h. High 17. UV index 7 or high. Oxtongue Lake - Fort Irwin - Northern Haliburton County. Today..Clearing this afternoon. Wind north 20 km/h gusting to 40. High 13. UV index 6 or high. Tonight..Clear. Wind north 20 km/h gusting to 40 becoming light this evening. Wind becoming northeast 20 before morning. Low zero. Tuesday..Mainly sunny. Increasing cloudiness late in the afternoon. Wind north 20 km/h. High 17. UV index 7 or high. Barry's Bay - Killaloe. Today..Clearing this afternoon. Wind north 20 km/h gusting to 40. High 13. UV index 5 or moderate. Tonight..Clear. Wind north 20 km/h gusting to 40 becoming light this evening. Wind becoming north 20 before morning. Low plus 2. Tuesday..Mainly cloudy. Wind north 20 km/h. High 18. UV index 7 or high. Renfrew - Arnprior - Calabogie. Today..Clearing late this afternoon. Wind northwest 20 km/h gusting to 40. High 14. UV index 5 or moderate. Tonight..Partly cloudy. Wind north 20 km/h gusting to 40 becoming light this evening. Low plus 3 with risk of frost. Tuesday..Mainly cloudy. Wind north 20 km/h becoming light in the afternoon. High 18. UV index 5 or moderate. Petawawa - Pembroke - Cobden. Today..Clearing this afternoon. Wind north 30 km/h gusting to 50. High 14. UV index 5 or moderate. Tonight..A few clouds. Wind north 30 km/h gusting to 50. Low plus 3. Tuesday..Increasing cloudiness early in the morning. Wind north 30 km/h becoming light in the afternoon. Wind becoming northeast 20 late in the afternoon. High 18. UV index 5 or moderate. Western Algonquin Park - Lake of Two Rivers. Today..Clearing this afternoon. Wind north 20 km/h gusting to 40. High 12. UV index 6 or high. Tonight..Clear. Wind north 20 km/h gusting to 40. Low zero. Tuesday..A mix of sun and cloud. Wind northeast 30 km/h. High 16. UV index 7 or high. Deep River - Whitney - Eastern Algonquin Park. Today..Clearing this afternoon. Wind north 30 km/h gusting to 50. High 12. UV index 6 or high. Tonight..Clear. Wind north 20 km/h gusting to 40 becoming light this evening. Wind becoming north 20 before morning. Low zero. Tuesday..A mix of sun and cloud. Wind north 20 km/h. High 16. UV index 7 or high. Bayfield Inlet - Dunchurch. Today..Sunny. Wind north 20 km/h gusting to 40. High 14. UV index 6 or high. Tonight..Clear. Wind north 20 km/h gusting to 40. Low plus 2. Tuesday..A mix of sun and cloud. Becoming sunny in the morning. Wind northeast 20 km/h. High 16. UV index 7 or high. South River - Burk's Falls. Today..Sunny. Wind north 20 km/h gusting to 40. High 13. UV index 6 or high. Tonight..Clear. Wind north 20 km/h gusting to 40. Low plus 1. Tuesday..A mix of sun and cloud. Becoming sunny in the morning. Wind northeast 20 km/h. High 16. UV index 7 or high. End $$$$^^ --- up 4 days, 4 hours, 16 minutes * Origin: Northern Realms (1:229/664) .