
Brockville — Today, a mix of sun and cloud, then clearing near noon. Today’s high is 11°C. UV index 3 or moderate.
Tonight, clear, then becoming partly cloudy before morning. Low plus 1°C.

Thursday, cloudy, with a 40 percent chance of showers in the morning. Rain begins near noon. Amount 10 to 15 mm. High 6°C. UV index 1 or low.
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