
Brockville – Good morning, Brockville, Prescott, Gananoque, and Leeds-Grenville. Here is your Tuesday morning weather update for May 20, 2025.
Today: Sunny. Increasing cloudiness late this afternoon. Wind north 20 km/h gusting to 40 becoming light late this morning. High 14. UV index 7 or high.
Tonight: Mainly cloudy. 40 percent chance of showers overnight. Wind becoming east 20 km/h late this evening. Low 8.

Wednesday: It will be mostly cloudy with a 40 percent chance of showers. The wind will be east 20 km/h and will become light in the morning. The temperature will be 16. The UV index will be 7 or high.
Your 5-day local forecast:




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