
Brockville – Good morning, Brockville, Prescott, Gananoque, and Leeds-Grenville. Here is your Monday morning weather update for May 12, 2025.
Today: A mix of sun and clouds. It will become sunny near noon. The wind will become southwest at 20 km/h this morning. The high will be 24. The UV index will be 8 or very high.
Tonight: Clear. Low 10.

Tuesday: Sunny. Becoming a mix of sun and cloud in the afternoon. Wind is becoming southwest 20 km/h late in the afternoon. High 26. Humidex 29. UV index 8 or very high.
Your 5-day local forecast:




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