
Brockville – Good morning, Brockville, Prescott, Gananoque, and Leeds-Grenville. Here is your Wednesday morning weather update for June 4, 2025.
Today: Sunny. Hazy. Wind southwest 30 km/h gusting to 50. High 28. Humidex 32. UV index 9 or very high.
Tonight: There is increasing cloudiness. There is a 40 percent chance of showers before morning, with a risk of a thunderstorm. The wind is southwest at 20 km/h, gusting to 40, becoming light this evening. The low will be 17.

Thursday: Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. Wind west 20 km/h becoming light late in the morning. High 24. Humidex 29. UV index 6 or high.
Your 5-day local forecast:




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