Subj : [1/2] Southern Ontario Weather To : All From : Northern Realms Date : Mon Apr 21 2025 15:35:02 FPCN11 CWTO 211930 Forecasts for Southern Ontario and the National Capital Region issued by Environment Canada at 3:30 p.m. EDT Monday 21 April 2025 for tonight Tuesday and Tuesday night. The next scheduled forecast will be issued at 5:00 a.m. EDT Tuesday. City of Toronto. Tonight..Mainly cloudy. 60 percent chance of showers early this evening. Risk of a thunderstorm early this evening. Wind east 30 km/h gusting to 50 becoming southwest 30 gusting to 50 this evening. Low 6. Tuesday..Cloudy. Wind west 20 km/h gusting to 40. High 15. UV index 5 or moderate. Tuesday night..Clear. Becoming partly cloudy overnight. Low plus 3. Windsor - Leamington - Essex County. Tonight..A few clouds. Increasing cloudiness late this evening. Wind southwest 40 km/h gusting to 80. Low 7. Tuesday..Sunny. Wind west 30 km/h gusting to 50 becoming light in the afternoon. High 19. UV index 7 or high. Tuesday night..Cloudy. Low 7. Chatham-Kent - Rondeau Park. Tonight..Partly cloudy. Becoming cloudy near midnight. Wind southwest 40 km/h gusting to 80. Low 6. Tuesday..Clearing in the morning. Wind west 30 km/h gusting to 50. High 18. UV index 7 or high. Tuesday night..Increasing cloudiness late in the evening. Low 7. Sarnia - Petrolia - Western Lambton County. Tonight..A few clouds. Increasing cloudiness late this evening. Wind southwest 40 km/h gusting to 80. Low plus 5. Tuesday..Clearing in the morning. Wind west 30 km/h gusting to 50 becoming light in the afternoon. High 16. UV index 7 or high. Tuesday night..Increasing cloudiness in the evening. Low plus 4. Watford - Pinery Park - Eastern Lambton County. Tonight..A few clouds. Increasing cloudiness late this evening. Wind southwest 40 km/h gusting to 80. Low plus 5. Tuesday..Cloudy. Becoming a mix of sun and cloud in the afternoon. Wind west 30 km/h gusting to 50. High 16. UV index 6 or high. Tuesday night..Clear. Increasing cloudiness after midnight. Low plus 4. Rodney - Shedden - Western Elgin County. Tonight..Partly cloudy. Becoming cloudy near midnight. Wind southwest 40 km/h gusting to 80. Low plus 5. Tuesday..Mainly cloudy. Clearing early in the afternoon. Wind west 30 km/h gusting to 50 becoming light in the afternoon. High 17. UV index 7 or high. Tuesday night..Increasing cloudiness late in the evening. Low plus 3. St. Thomas - Aylmer - Eastern Elgin County. Tonight..Partly cloudy. Becoming cloudy near midnight. Wind southwest 40 km/h gusting to 80. Low plus 5. Tuesday..Mainly cloudy. Clearing in the afternoon. Wind west 30 km/h gusting to 50 becoming light in the afternoon. High 17. UV index 7 or high. Tuesday night..Increasing cloudiness. Low plus 3. Strathroy - Komoka - Western Middlesex County. Tonight..A few clouds. Increasing cloudiness late this evening. Wind southwest 40 km/h gusting to 80. Low plus 5. Tuesday..Clearing late in the morning. Wind west 30 km/h gusting to 50. High 16. UV index 7 or high. Tuesday night..Increasing cloudiness late in the evening. Low plus 3. London - Parkhill - Eastern Middlesex County. Tonight..A few clouds. Increasing cloudiness late this evening. Wind southwest 40 km/h gusting to 80. Low plus 5. Tuesday..Cloudy. Clearing early in the afternoon. Wind west 30 km/h gusting to 50. High 16. UV index 7 or high. Tuesday night..Increasing cloudiness. Low plus 3. Simcoe - Delhi - Norfolk. Tonight..Showers ending early this evening then partly cloudy. Risk of a thunderstorm early this evening. Wind southwest 30 km/h gusting to 60. Low plus 5. Tuesday..Cloudy. Clearing early in the afternoon. Wind southwest 30 km/h gusting to 50. High 16. UV index 7 or high. Tuesday night..Clear. Increasing cloudiness near midnight. Low plus 2. Dunnville - Caledonia - Haldimand. Tonight..Showers ending early this evening then partly cloudy with 40 percent chance of showers. Becoming cloudy after midnight. Risk of a thunderstorm early this evening. Wind southwest 30 km/h gusting to 60. Low 6. Tuesday..Cloudy. Clearing in the afternoon. Wind southwest 30 km/h gusting to 50. High 15. UV index 6 or high. Tuesday night..Clear. Increasing cloudiness near midnight. Low plus 2. Woodstock - Tillsonburg - Oxford County. Tonight..Showers ending early this evening then mainly cloudy. Risk of a thunderstorm early this evening. Wind southwest 40 km/h gusting to 60. Low plus 4. Tuesday..Cloudy. Clearing early in the afternoon. Wind west 30 km/h gusting to 50. High 14. UV index 7 or high. Tuesday night..Clear. Increasing cloudiness near midnight. Low plus 2. Brantford - County of Brant. Tonight..Showers ending early this evening then partly cloudy. Risk of a thunderstorm early this evening. Wind southwest 40 km/h gusting to 60. Low plus 4. Tuesday..Cloudy. Clearing in the afternoon. Wind west 30 km/h gusting to 50. High 14. UV index 6 or high. Tuesday night..Clear. Increasing cloudiness near midnight. Low plus 2. Niagara Falls - Welland - Southern Niagara Region. Tonight..Showers ending early this evening then partly cloudy with 40 percent chance of showers. Risk of a thunderstorm early this evening. Wind southwest 30 km/h gusting to 60. Low plus 5. Tuesday..Cloudy. Becoming a mix of sun and cloud in the afternoon. Wind southwest 30 km/h gusting to 50. High 10. UV index 6 or high. Tuesday night..Clear. Becoming partly cloudy after midnight. Wind southwest 20 km/h becoming light in the evening. Low plus 2. St. Catharines - Grimsby - Northern Niagara Region. Tonight..Showers ending early this evening then partly cloudy with 40 percent chance of showers. Risk of a thunderstorm early this evening. Wind east 20 km/h gusting to 40 becoming southwest 30 gusting to 60 early this evening. Low 6. Tuesday..Cloudy. Becoming a mix of sun and cloud in the afternoon. Wind west 30 km/h gusting to 50. High 13. UV index 6 or high. Tuesday night..Clear. Becoming partly cloudy after midnight. Low plus 2. City of Hamilton. Tonight..Showers ending early this evening then partly cloudy with 40 percent chance of showers. Becoming cloudy after midnight. Risk of a thunderstorm early this evening. Wind east 20 km/h gusting to 40 becoming southwest 30 gusting to 60 early this evening. Low plus 4. Tuesday..Cloudy. Becoming a mix of sun and cloud in the afternoon. Wind west 30 km/h gusting to 50. High 14. UV index 6 or high. Tuesday night..Clear. Increasing cloudiness near midnight. Wind west 20 km/h becoming light in the evening. Low plus 3. Burlington - Oakville. Tonight..Mainly cloudy. 60 percent chance of showers early this evening. Risk of a thunderstorm early this evening. Wind east 30 km/h gusting to 50 becoming southwest 30 gusting to 50 early this evening. Low 7. Tuesday..Cloudy. Becoming a mix of sun and cloud in the afternoon. Wind west 30 km/h gusting to 50. High 14. UV index 5 or moderate. Tuesday night..Clear. Increasing cloudiness after midnight. Low plus 3. Halton Hills - Milton. Tonight..Mainly cloudy. 60 percent chance of showers early this evening. Risk of a thunderstorm early this evening. Wind east 30 km/h gusting to 50 becoming southwest 30 gusting to 50 early this evening. Low plus 5. Tuesday..Cloudy. Becoming a mix of sun and cloud in the afternoon. Wind west 30 km/h gusting to 50. High 15. UV index 5 or moderate. Tuesday night..Clear. Increasing cloudiness after midnight. Wind west 30 km/h becoming light in the evening. Low plus 1. Mississauga - Brampton. Tonight..Mainly cloudy. 60 percent chance of showers early this evening. Risk of a thunderstorm early this evening. Wind east 30 km/h gusting to 50 becoming southwest 30 gusting to 50 early this evening. Low plus 5. Tuesday..Cloudy. Becoming a mix of sun and cloud in the afternoon. Wind west 20 km/h gusting to 40. High 15. UV index 5 or moderate. Tuesday night..Clear. Becoming partly cloudy after midnight. Wind west 30 km/h becoming light in the evening. Low plus 1. Caledon. Tonight..Cloudy. 60 percent chance of showers early this evening with risk of a thunderstorm. Wind southeast 30 km/h gusting to 50 becoming southwest 40 gusting to 60 early this evening. Low plus 5. Tuesday..Cloudy. Becoming a mix of sun and cloud in the afternoon. Wind southwest 30 km/h gusting to 50. High 15. UV index 5 or moderate. Tuesday night..Clear. Becoming partly cloudy after midnight. Wind west 30 km/h becoming light in the evening. Low plus 1. Vaughan - Richmond Hill - Markham. Tonight..Mainly cloudy. 60 percent chance of showers early this evening. Risk of a thunderstorm early this evening. Wind east 30 km/h gusting to 50 becoming southwest 30 gusting to 50 this evening. Low 6. Tuesday..Cloudy. Wind west 20 km/h gusting to 40. High 14. UV index 5 or moderate. Tuesday night..Clear. Low zero. Newmarket - Georgina - Northern York Region. Tonight..Showers ending early this evening then mainly cloudy with 40 percent chance of showers. Risk of a thunderstorm early this evening. Wind southeast 30 km/h gusting to 50 becoming southwest 30 gusting to 50 this evening. Low 6. Tuesday..Cloudy. Wind west 20 km/h gusting to 40. High 14. UV index 5 or moderate. Tuesday night..Clear. Low zero. Pickering - Oshawa - Southern Durham Region. Tonight..Showers ending early this evening then mainly cloudy with 40 percent chance of showers. Risk of a thunderstorm early this evening. Wind east 30 km/h gusting to 50 becoming southwest 30 gusting to 50 this evening. Low 6. Tuesday..Cloudy. Wind west 20 km/h gusting to 40. High 14. UV index 5 or moderate. Tuesday night..Clearing in the evening. Low zero. Uxbridge - Beaverton - Northern Durham Region. Tonight..Showers ending early this evening then mainly cloudy with 40 percent chance of showers. Risk of a thunderstorm early this evening. Wind southeast 30 km/h gusting to 50 becoming southwest 30 gusting to 50 this evening. Low 6. Tuesday..Overcast. Wind west 30 km/h gusting to 50. High 14. UV index 5 or moderate. Tuesday night..Clearing in the evening. Low zero. Goderich - Bluewater - Southern Huron County. Tonight..A few clouds. Increasing cloudiness late this evening. Wind southwest 40 km/h gusting to 70. Low plus 4. Tuesday..Mainly cloudy. Clearing early in the afternoon. Wind southwest 30 km/h gusting to 50. High 13. UV index 7 or high. Tuesday night..Increasing cloudiness late in the evening. Low plus 1. Wingham - Blyth - Northern Huron County. Tonight..A few clouds. Increasing cloudiness late this evening. Wind southwest 40 km/h gusting to 70. Low plus 4. Tuesday..Cloudy. Clearing early in the afternoon. Wind southwest 30 km/h gusting to 50 becoming northwest 20 gusting to 40 early in the afternoon. High 13. UV index 6 or high. Tuesday night..Increasing cloudiness. Low plus 1. Stratford - Mitchell - Southern Perth County. Tonight..Partly cloudy. Becoming cloudy near midnight. Wind southwest 40 km/h gusting to 70. Low plus 4. Tuesday..Cloudy. Clearing in the afternoon. Wind southwest 30 km/h gusting to 50 becoming northwest 20 gusting to 40 early in the afternoon. High 13. UV index 6 or high. Tuesday night..Increasing cloudiness. Low plus 1. Listowel - Milverton - Northern Perth County. Tonight..Partly cloudy. Becoming cloudy near midnight. Wind southeast 30 km/h gusting to 50 becoming southwest 40 gusting to 60 early this evening. Low plus 4. Tuesday..Cloudy. Clearing in the afternoon. Wind southwest 30 km/h gusting to 50. High 13. UV index 6 or high. Tuesday night..Increasing cloudiness. Low plus 1. Kitchener - Cambridge - Region of Waterloo. Tonight..Mainly cloudy. 40 percent chance of showers early this evening with risk of a thunderstorm. Wind southeast 30 km/h gusting to 50 becoming southwest 40 gusting to 60 early this evening. Low plus 5. Tuesday..Cloudy. Clearing late in the afternoon. Wind southwest 30 km/h gusting to 50. High 13. UV index 5 or moderate. Tuesday night..Clear. Increasing cloudiness near midnight. Wind west 20 km/h becoming light in the evening. Low zero. Guelph - Erin - Southern Wellington County. Tonight..Mainly cloudy. 40 percent chance of showers early this evening with risk of a thunderstorm. Wind southeast 30 km/h gusting to 50 becoming southwest 40 gusting to 60 early this evening. Low plus 5. Tuesday..Cloudy. Becoming a mix of sun and cloud in the afternoon. Wind southwest 30 km/h gusting to 50. High 13. UV index 5 or moderate. Tuesday night..Clear. Increasing cloudiness after midnight. Wind west 20 km/h becoming light in the evening. Low zero. Mount Forest - Arthur - Northern Wellington County. Tonight..Partly cloudy. Becoming cloudy near midnight. Wind southeast 30 km/h gusting to 50 becoming southwest 40 gusting to 60 early this evening. Low plus 5. Tuesday..Cloudy. Becoming a mix of sun and cloud in the afternoon. Wind southwest 30 km/h gusting to 50. High 13. UV index 5 or moderate. Tuesday night..Clear. Increasing cloudiness near midnight. Wind west 20 km/h becoming light in the evening. Low zero. Orangeville - Grand Valley - Southern Dufferin County. Tonight..Cloudy. 40 percent chance of showers early this evening with risk of a thunderstorm. Wind southeast 30 km/h gusting to 50 becoming southwest 40 gusting to 60 early this evening. Low plus 5. Tuesday..Cloudy. Becoming a mix of sun and cloud in the afternoon. Wind southwest 30 km/h gusting to 50. High 12. UV index 5 or moderate. Tuesday night..Clear. Becoming partly cloudy after midnight. Wind up to 15 km/h. Low minus 2. Wind chill minus 4 overnight. Shelburne - Mansfield - Northern Dufferin County. Tonight..Cloudy. 40 percent chance of showers early this evening with risk of a thunderstorm. Wind southeast 30 km/h gusting to 50 becoming southwest 40 gusting to 60 early this evening. Low plus 5. Tuesday..Cloudy. Becoming a mix of sun and cloud in the afternoon. Wind west 30 km/h gusting to 50. High 12. UV index 5 or moderate. Tuesday night..Clear. Becoming partly cloudy after midnight. Wind up to 15 km/h. Low minus 2. Wind chill minus 4 overnight. Innisfil - New Tecumseth - Angus. Tonight..Showers ending early this evening then cloudy. Risk of a thunderstorm early this evening. Wind southeast 30 km/h gusting to 50 becoming southwest 30 gusting to 50 this evening. Low plus 5. Tuesday..Cloudy. Becoming a mix of sun and cloud in the afternoon. Wind west 20 km/h gusting to 40. High 12. UV index 5 or moderate. Tuesday night..Clear. Becoming partly cloudy overnight. Wind up to 15 km/h. Low minus 2. Wind chill minus 4 overnight. Saugeen Shores - Kincardine - Southern Bruce County. Tonight..A few clouds. Increasing cloudiness late this evening. Wind southwest 40 km/h gusting to 70. Low plus 4. Tuesday..Cloudy. Clearing early in the afternoon. Wind southwest 30 km/h gusting to 50. High 9. UV index 6 or high. Tuesday night..Clear. Increasing cloudiness near midnight. Low plus 2. Bruce Peninsula - Sauble Beach - Tobermory. Tonight..Partly cloudy. Becoming cloudy this evening. Wind southeast 30 km/h gusting to 50 becoming southwest 40 gusting to 70 early this evening. Low plus 2. Tuesday..Cloudy. Clearing early in the afternoon. Wind southwest 40 km/h gusting to 60 becoming west 20 late in the afternoon. High 7. UV index 6 or high. Tuesday night..Clear. Low plus 1. Hanover - Dundalk - Southern Grey County. Tonight..Partly cloudy. Becoming cloudy near midnight. Wind southeast 30 km/h gusting to 50 becoming southwest 40 gusting to 60 early this evening. Low plus 4. Tuesday..Cloudy. Becoming a mix of sun and cloud in the afternoon. Wind west 30 km/h gusting to 50. High 10. UV index 5 or moderate. Tuesday night..Clear. Increasing cloudiness after midnight. Low plus 1. Owen Sound - Blue Mountains - Northern Grey County. Tonight..Partly cloudy. Becoming cloudy this evening. Wind southeast 30 km/h gusting to 50 becoming southwest 40 gusting to 60 early this evening. Low plus 4. Tuesday..Cloudy. Clearing in the afternoon. Wind west 40 km/h gusting to 60. High 8. UV index 5 or moderate. Tuesday night..Clear. Becoming partly cloudy after midnight. Low minus 1. Barrie - Collingwood - Hillsdale. Tonight..Cloudy. 60 percent chance of showers or drizzle this evening. Risk of a thunderstorm early this evening. Wind southeast 30 km/h gusting to 50 becoming southwest 30 gusting to 50 this evening. Low plus 4. Tuesday..Overcast. Wind west 30 km/h gusting to 50. High 9. UV index 4 or moderate. Tuesday night..Clear. Wind west 20 km/h becoming light in the evening. Low minus 2. Wind chill minus 4 overnight. Midland - Coldwater - Orr Lake. Tonight..Cloudy. 60 percent chance of showers or drizzle this evening. Risk of a thunderstorm early this evening. Wind southeast 30 km/h gusting to 50 becoming southwest 30 gusting to 50 this evening. Low plus 3. Tuesday..Cloudy. Wind west 20 km/h increasing to 40 gusting to 60 in the morning. High 7. UV index 4 or moderate. Tuesday night..A few clouds. Low minus 2. Orillia - Lagoon City - Washago. Tonight..Cloudy. 60 percent chance of showers or drizzle this evening. Risk of a thunderstorm early this evening. Wind southeast 30 km/h gusting to 50 becoming southwest 30 gusting to 50 this evening. Low plus 3. Tuesday..Overcast. Wind west 20 km/h gusting to 40. High 7. UV index 3 or moderate. Tuesday night..A few clouds. Low minus 2. Cobourg - Colborne - Western Northumberland County. Tonight..Showers ending this evening then mainly cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm early this evening. Wind southeast 30 km/h gusting to 50 becoming southwest 30 gusting to 60 near midnight. Low 6. Tuesday..Cloudy. Wind southwest 30 km/h gusting to 60. High 12. UV index 5 or moderate. Tuesday night..Clearing in the evening. Low plus 2. Belleville - Quinte West - Eastern Northumberland County. Tonight..Showers ending this evening then mainly cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm early this evening. Local amount 10 to 15 mm. Wind southeast 30 km/h gusting to 50 becoming southwest 30 gusting to 60 near midnight. Low 6. Tuesday..Cloudy. Wind southwest 30 km/h gusting to 60. High 12. UV index 5 or moderate. Tuesday night..Clearing in the evening. Low plus 2. Picton - Sandbanks Park. Tonight..Showers ending this evening then mainly cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm early this evening. Local amount 10 to 15 mm. Wind southeast 30 km/h gusting to 50 becoming southwest 30 gusting to 60 near midnight. Low 6. Tuesday..Cloudy. Wind southwest 30 km/h gusting to 60. High 12. UV index 5 or moderate. Tuesday night..Clearing in the evening. Low plus 2. Napanee - Consecon. Tonight..Showers ending this evening then mainly cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm early this evening. Local amount 10 to 15 mm. Wind southeast 30 km/h gusting to 50 becoming southwest 30 gusting to 60 near midnight. Low 6. Tuesday..Cloudy. Wind southwest 30 km/h gusting to 60. High 12. UV index 5 or moderate. Tuesday night..Clearing in the evening. Low plus 2. Kingston - Odessa - Frontenac Islands. Tonight..Showers ending this evening then mainly cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm early this evening. Local amount 10 to 15 mm. Wind southeast 20 km/h gusting to 40 becoming southwest 20 gusting to 40 near midnight. Low 6. Tuesday..Cloudy. Wind southwest 30 km/h gusting to 50. High 10. UV index 5 or moderate. Tuesday night..Clearing in the evening. Low plus 1. Lindsay - Southern Kawartha Lakes. Tonight..Showers ending early this evening then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm early this evening. Wind southeast 20 km/h gusting to 40 becoming west 30 gusting to 50 this evening. Low plus 4. Tuesday..Overcast. Wind west 30 km/h gusting to 50. High 10. UV index 3 or moderate. Tuesday night..A few clouds. Wind west 20 km/h becoming light in the evening. Low minus 3. Wind chill minus 5 overnight. Fenelon Falls - Balsam Lake Park - Northern Kawartha Lakes. Tonight..Showers ending early this evening then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm early this evening. Wind southeast 20 km/h gusting to 40 becoming southwest 20 gusting to 40 this evening. Low plus 4. Tuesday..Overcast. Wind west 30 km/h gusting to 50. High 8. UV index 3 or moderate. Tuesday night..Partly cloudy. Clearing after midnight. Wind west 20 km/h becoming light in the evening. Low minus 3. Wind chill minus 5 overnight. Peterborough City - Lakefield - Southern Peterborough County. Tonight..Showers ending this evening then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm early this evening. Wind southeast 20 km/h gusting to 40 becoming southwest 20 gusting to 40 this evening. Low plus 4. Tuesday..Cloudy. Wind west 20 km/h gusting to 40. High 10. UV index 5 or moderate. Tuesday night..Clearing in the evening. Wind west 20 km/h becoming light in the evening. Low minus 3. Wind chill minus 5 overnight. Apsley - Woodview - Northern Peterborough County. Tonight..Showers ending early this evening then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm early this evening. Wind southeast 20 km/h gusting to 40 becoming southwest 20 gusting to 40 this evening. Low plus 4. Tuesday..Overcast. Wind west 30 km/h gusting to 50. High 9. UV index 3 or moderate. Tuesday night..Cloudy. Becoming partly cloudy after midnight. Wind west 20 km/h becoming light in the evening. Low minus 3. Wind chill minus 5 overnight. Stirling - Tweed - Madoc. Tonight..Showers ending this evening then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm early this evening. Local amount 10 to 15 mm. Wind southeast 20 km/h gusting to 40 becoming southwest 20 gusting to 40 near midnight. Low plus 5. Tuesday..Overcast. Wind west 30 km/h gusting to 50. High 12. UV index 3 or moderate. Tuesday night..Mainly cloudy. Clearing after midnight. Low zero. Tamworth - Sydenham - South Frontenac. Tonight..Showers ending this evening then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm early this evening. Local amount 10 to 15 mm. Wind southeast 20 km/h gusting to 40 becoming southwest 20 gusting to 40 near midnight. Low plus 5. Tuesday..Cloudy. Wind west 30 km/h gusting to 50. High 12. UV index 5 or moderate. Tuesday night..Partly cloudy. Low zero. Kaladar - Bannockburn - Bon Echo Park. Tonight..Showers ending this evening then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm early this evening. Local amount 10 to 15 mm. Wind southeast 20 km/h gusting to 40 becoming southwest 20 gusting to 40 near midnight. Temperature rising to 14 this evening then falling. Tuesday..Overcast. Wind west 30 km/h gusting to 50. High 8. UV index 3 or moderate. Tuesday night..Cloudy. Becoming partly cloudy after midnight. Low minus 3. Bancroft - Hastings Highlands - Denbigh. Tonight..Showers ending this evening then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm early this evening. Local amount 10 to 15 mm. Wind southeast 20 km/h gusting to 40 becoming southwest 20 gusting to 40 near midnight. Temperature rising to 14 this evening then falling. Tuesday..Overcast. Wind west 30 km/h gusting to 50. High 7. UV index 3 or moderate. Tuesday night..Cloudy. Low minus 3. Gananoque - Mallorytown. Tonight..A few showers ending late this evening then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm this evening. Local amount 10 to 15 mm. Wind southeast 20 km/h gusting to 40 becoming southwest 30 gusting to 50 after midnight. Low 7. Tuesday..Cloudy. Wind southwest 30 km/h gusting to 50. High 12. UV index 5 or moderate. Tuesday night..Cloudy. Becoming partly cloudy in the evening. Low plus 1. Brockville - Prescott. Tonight..A few showers ending late this evening then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm this evening. Local amount 10 to 15 mm. Wind southeast 20 km/h gusting to 40 becoming southwest 30 gusting to 50 after midnight. Low 7. Tuesday..Overcast. Wind southwest 30 km/h gusting to 50. High 12. UV index 3 or moderate. Tuesday night..Mainly cloudy. Low plus 1. Westport - Charleston Lake. Tonight..A few showers ending late this evening then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm this evening. Local amount 10 to 15 mm. Wind southeast 20 km/h gusting to 40 becoming southwest 30 gusting to 50 after midnight. Low 7. Tuesday..Overcast. Wind southwest 30 km/h gusting to 50. High 12. UV index 3 or moderate. Tuesday night..Mainly cloudy. Low plus 1. Merrickville-Wolford - Kemptville. Tonight..A few showers ending late this evening then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm this evening. Local amount 10 to 15 mm. Wind southeast 20 km/h gusting to 40 becoming southwest 30 gusting to 50 after midnight. Low 7. Tuesday..Overcast. Wind southwest 30 km/h gusting to 50. High 12. UV index 3 or moderate. Tuesday night..Cloudy. Low plus 1. Ottawa North - Kanata - Orl‚ans. Tonight..Periods of rain ending near midnight then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm this evening. Local amount 10 to 15 mm. Wind east 20 km/h gusting to 40 becoming southwest 30 gusting to 50 before morning. Low 8. Tuesday..Cloudy. 40 percent chance of showers or drizzle early in the morning. Wind southwest 30 km/h gusting to 50. High 10. UV index 2 or low. Tuesday night..Overcast. Wind west 30 km/h becoming light in the evening. Low plus 1. Ottawa South - Richmond - Metcalfe. Tonight..Periods of rain ending near midnight then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm this evening. Local amount 10 to 15 mm. Wind east 20 km/h gusting to 40 becoming southwest 30 gusting to 50 before morning. Low 8. Tuesday..Cloudy. 40 percent chance of showers or drizzle early in the morning. Wind southwest 30 km/h gusting to 50. High 10. UV index 2 or low. Tuesday night..Overcast. Wind west 30 km/h becoming light in the evening. Low plus 1. Gatineau. Tonight..Periods of rain ending near midnight then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm this evening. Local amount 10 to 15 mm. Wind east 20 km/h gusting to 40 becoming southwest 30 gusting to 50 before morning. Low 7. Tuesday..Cloudy. 40 percent chance of showers or drizzle early in the morning. Wind southwest 30 km/h gusting to 50. High 10. UV index 2 or low. Tuesday night..Overcast. Wind west 20 km/h becoming light in the evening. Low plus 1. Prescott and Russell. Tonight..Periods of rain ending near midnight then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm this evening. Local amount 10 to 15 mm. Wind east 20 km/h gusting to 40 becoming southwest 30 gusting to 50 before morning. Low 8. Tuesday..Cloudy. 40 percent chance of showers or drizzle early in the morning. Wind southwest 30 km/h gusting to 50. High 10. UV index 2 or low. Tuesday night..Overcast. Low plus 2. Morrisburg - Long Sault. Tonight..Periods of rain ending near midnight then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm this evening. Local amount 10 to 15 mm. Wind east 20 km/h gusting to 40 becoming southwest 30 gusting to 50 before morning. Temperature steady near 11. Tuesday..Cloudy. 40 percent chance of showers or drizzle early in the morning. Wind southwest 30 km/h gusting to 50. High 11. UV index 2 or low. Tuesday night..Cloudy. Low plus 2. Cornwall - Lancaster. Tonight..Periods of rain ending near midnight then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm this evening. Local amount 10 to 15 mm. Wind east 20 km/h gusting to 40 becoming southwest 40 gusting to 60 before morning. Temperature steady near 11. Tuesday..Cloudy. 40 percent chance of showers or drizzle early in the morning. Wind southwest 40 km/h gusting to 60. High 11. UV index 2 or low. Tuesday night..Overcast. Low plus 2. Winchester - Newington. Tonight..Periods of rain ending near midnight then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm this evening. Local amount 10 to 15 mm. Wind east 20 km/h gusting to 40 becoming southwest 30 gusting to 50 before morning. Temperature steady near 11. Tuesday..Cloudy. 40 percent chance of showers or drizzle early in the morning. Wind southwest 30 km/h gusting to 50. High 11. UV index 2 or low. Tuesday night..Cloudy. Low plus 2. Maxville - Alexandria. Tonight..Periods of rain ending near midnight then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm this evening. Local amount 10 to 15 mm. Wind east 20 km/h gusting to 40 becoming southwest 30 gusting to 50 before morning. Temperature steady near 11. Tuesday..Cloudy. 40 percent chance of showers or drizzle early in the morning. Wind southwest 30 km/h gusting to 50. High 11. UV index 2 or low. Tuesday night..Overcast. Low plus 2. Plevna - Sharbot Lake - Western Lanark County. Tonight..Showers ending this evening then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm early this evening. Local amount 10 to 15 mm. Wind southeast 20 km/h gusting to 40 becoming southwest 20 gusting to 40 near midnight. Low plus 5. Tuesday..Overcast. Wind west 30 km/h gusting to 50. High 9. UV index 2 or low. Tuesday night..Cloudy. Wind up to 15 km/h. Low minus 2. Wind chill minus 4 overnight. Smiths Falls - Perth - Eastern Lanark County. Tonight..A few showers ending late this evening then cloudy with 40 percent chance of showers or drizzle. Risk of a thunderstorm this evening. Local amount 10 to 15 mm. Wind southeast 20 km/h gusting to 40 becoming southwest 30 gusting to 50 after midnight. Low plus 5. Tuesday..Overcast. Wind southwest 30 km/h gusting to 50. High 9. UV index 2 or low. Tuesday night..Cloudy. Wind up to 15 km/h. Low minus 2. Wind chill minus 4 overnight. Continued in next message... --- up 3 days, 19 hours, 9 minutes * Origin: Northern Realms (1:229/664) .