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Current conditions
Cornwall skaters at the Optimist Park Skatepark
Shadow

forecast

detailed forecast

Extented weather forecast for Cornwall Ontario and the Seaway
Issued by Environment Canada at 1530 ET Tue Nov 3 2026
Tonight: A few showers ending early this evening then cloudy with 40 percent chance of showers. Becoming partly cloudy near midnight. Low 14.
Wednesday: Sunny. Becoming a mix of sun and cloud in the afternoon. Wind becoming southwest 20 km/h in the morning. High 22. Uv index 3 or moderate.
Wednesday Night: Clear. Increasing cloudiness after midnight then a few showers. Low 15.
Thursday: Showers. High 19.
Thursday Night: Cloudy periods with 40 percent chance of showers. Low 11.
Friday: Cloudy. High 16.
Friday Night: Cloudy with 60 percent chance of showers. Low 8.
Saturday: Cloudy with 40 percent chance of showers. High 10.
Saturday Night: Cloudy with 30 percent chance of showers. Low plus 2.
Sunday: Cloudy. High 8.
Sunday Night: Cloudy with 30 percent chance of showers. Low plus 2.
Monday: Cloudy with 30 percent chance of showers. High 8.

regional radar

■ Cornwall
🌧 Rain ❄ Snow 🧊 Ice 🌨 Mix

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On November 3rd

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Explore the Seaway City

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Discover the Counties of SDG

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