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Cornwall, ON — 3 hour detailed weather forecast


ON, Canada » Cornwall


Forecast for today, Wednesday, February 18, 2026
Detailed forecast - 3 hours intervals

19:00

A mix of sun and cloud
-5°
feels like: -10°
A mix of sun and cloud
Relative humidity: 76%, pressure: 755 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northeast
22:00

A mix of sun and cloud
-6°
feels like: -11°
A mix of sun and cloud
Relative humidity: 80%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northeast
01:00

A mix of sun and cloud
-8°
feels like: -12°
A mix of sun and cloud
Relative humidity: 84%, pressure: 757 mm
Precipitations: 0.0 mm
Wind: 7 km/h, east
04:00

A mix of sun and cloud
-10°
feels like: -16°
A mix of sun and cloud
Relative humidity: 85%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northeast
07:00

Partly cloudy
-10°
feels like: -17°
Partly cloudy
Relative humidity: 83%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northeast
10:00

Mainly sunny
-7°
feels like: -13°
Mainly sunny
Relative humidity: 66%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northeast
13:00

Sunny
-4°
feels like: -10°
Clear
Relative humidity: 62%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 14 km/h, northeast
16:00

Partly cloudy
-4°
feels like: -8°
Partly cloudy
Relative humidity: 69%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northeast
19:00

Partly cloudy
-6°
feels like: -12°
Partly cloudy
Relative humidity: 72%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 14 km/h, northeast