
Brockville – Good morning, Brockville, Prescott, Gananoque, and Leeds-Grenville. Here is your Wednesday morning weather update for May 21, 2025.
Today: Cloudy with 40 percent chance of drizzle. Wind east 20 km/h. High 16. UV index 5 or moderate.
Tonight: Cloudy. There is a 40 percent chance of showers this evening. Periods of rain will begin late this evening. The wind will be east 20 km/h and become light this evening. The wind will become southeast 20 km/h and gust to 40 late this evening. The low will be 8.

Thursday: There will be periods of rain. The wind will be east 20 km/h and will become light in the morning. The temperature will be 11. The UV index will be 2 or low.
Your 5-day local forecast:




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