
Brockville — Today, sunny. High 30°C. Humidex 37. UV index 8 or very high.
Tonight, clear. Low 18°C.

Wednesday, mainly sunny. High 30°C. Humidex 36. UV index 9 or very high.

Your 5-day local forecast:


Brockville — Today, sunny. High 30°C. Humidex 37. UV index 8 or very high.
Tonight, clear. Low 18°C.

Wednesday, mainly sunny. High 30°C. Humidex 36. UV index 9 or very high.

Your 5-day local forecast:

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Good Morning, Brockville, Leeds-Grenville! Local Weather Update – Sunday, October 25, 2026