
Brockville — Today, sunny. Fog patches are dissipating this morning. High 22. UV index 8 or very high.
Tonight, clear with a Low of 10.

Tuesday, a mix of sun and clouds. There is a 30 percent chance of showers early in the afternoon, then a 70 percent chance of showers late in the afternoon. High 23. Humidex 26. UV index 8 or very high.
Your 5-day local forecast:




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