
Brockville – Today: There is a mix of sun and clouds. The wind is becoming southwest at 20 km/h, gusting to 40 this morning. The high is 25. The humidity is 29. The UV index is 9 or very high.
Tonight: Partly cloudy. 30 percent chance of showers this evening. Wind southwest 20 km/h gusting to 40, becoming light late this evening. Wind becoming west 20 before morning. Low 16.

Thursday: Mainly cloudy. Wind northwest 20 km/h. High 23. Humidex 25. UV index 8 or very high.
Your 5-day local forecast:




More Stories
Cataraqui Conservation Issues Flood Outlook Statement for Inland Lakes & Streams
Yellow Warning – Rainfall Issued for Brockville, Leeds-Grenville For Tonight Into Saturday
Good Evening, Brockville, Leeds-Grenville! Local Weather Update – Friday, March 6, 2026