
Brockville — Today, a mix of sun and cloud. Wind up to 15 km/h. High plus 3°C. Wind chill minus 7 this morning. UV index 4 or moderate.
Tonight, flurries or rain showers. Risk of freezing rain overnight. Low 0°C.

Thursday, mainly cloudy. 40 percent chance of rain showers early in the morning. Periods of rain beginning in the afternoon. Risk of freezing rain early in the morning. Wind becoming southwest 20 km/h late in the morning. High 9°C. UV index 5 or moderate.
Your 5-day local forecast:




More Stories
Fire Danger in Eastern Ontario – High to Extreme
Throttle Down to the 1000 Islands June 19th to 20th for Top Gun Charity Fun Run in Gananoque
Good Morning, Brockville, Leeds-Grenville! Local Morning Weather Update – Friday, June 5, 2026