Cornwall Weather - AccuWeather Forecast for Ontario Canada

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Next 5 Days

Current Weather

17° F RealFeel® 3°
Mostly clear

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Today

Dec 18

22° Hi RealFeel® 8°
Clouds and sun; breezy
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Tonight

Dec 18

12° Lo RealFeel® 7°
Mainly clear
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Tomorrow

Dec 19

35° Hi RealFeel® 30°
Clouds and sun; not as cold
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Expect rainy weather late Friday night through Saturday morning

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Cornwall Weather Conditions - Nearby Places