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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 1726 ET Fri Aug 14 2026
Tonight: Partly cloudy. Low 11.
Saturday: Mainly sunny. High 24. Humidex 26. Uv index 7 or high.
Saturday Night: A few clouds. Low 11.
Sunday: Cloudy with 40 percent chance of showers. High 21.
Sunday Night: Cloudy with 70 percent chance of showers. Low 16.
Monday: Cloudy with 30 percent chance of showers. High 25.
Monday Night: Cloudy periods with 30 percent chance of showers. Low 13.
Tuesday: A mix of sun and cloud. High 24.
Tuesday Night: Cloudy periods. Low 16.
Wednesday: Cloudy with 30 percent chance of showers. High 23.
Wednesday Night: Cloudy with 60 percent chance of showers. Low 15.
Thursday: A mix of sun and cloud with 40 percent chance of showers. High 23.

regional radar

Cornwall
🌧 Rain Snow 🧊 Ice 🌨 Mix

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On August 15th

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Discover the Counties of SDG

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