
Brockville – Good morning, Brockville, Prescott, Gananoque, and Leeds-Grenville. Here is your Friday morning weather update for May 16, 2025.
Today: Increasing cloudiness. 60 percent chance of showers this afternoon with risk of a thunderstorm. Fog patches dissipating this morning. Wind becoming southwest 20 km/h gusting to 40 this morning. High 26. Humidex 32. UV index 6 or high.
Tonight: Partly cloudy. 60 percent chance of showers early this evening with risk of a thunderstorm. Fog patches developing overnight. Wind southwest 20 km/h becoming light this evening. Low 12.

Saturday: Mainly cloudy. Showers beginning in the morning. Risk of a thunderstorm. Fog patches dissipating in the morning. Local amount 25 mm. Wind becoming southeast 20 km/h then southwest 30 gusting to 50 late in the morning. High 22. Humidex 26. UV index 3 or moderate.
Your 5-day local forecast:

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