
Brockville — Today, sunny with a high of 28°C. Humidex 31. UV index 9 or very high.
Tonight, clear with a low of 16°C.

Saturday, sunny, with increasing cloudiness in the afternoon. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 27°C. Humidex 32. 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