
Brockville — Today, sunny. High 23°C. UV index 6 or high.
Tonight, clear. Increasing cloudiness after midnight. Low 9°C.

Saturday, mainly cloudy. 40 percent chance of showers late in the morning and in the afternoon. High 21°C. Humidex 25. UV index 5 or moderate.
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