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St. Thomas, ON — 3 hour detailed weather forecast


ON, Canada » St. Thomas


Forecast for today, Saturday, December 13, 2025
Detailed forecast - 3 hours intervals

16:00

Overcast
-7°
feels like: -14°
Overcast
Relative humidity: 78%, pressure: 743 mm
Precipitations: 0.1 mm
Wind: 14 km/h, west
19:00

Overcast
-9°
feels like: -17°
Overcast
Relative humidity: 75%, pressure: 744 mm
Precipitations: 0.0 mm
Wind: 22 km/h, west
22:00

Overcast
-13°
feels like: -21°
Overcast
Relative humidity: 75%, pressure: 745 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west
01:00

Mainly sunny
-15°
feels like: -24°
Mainly sunny
Relative humidity: 74%, pressure: 745 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west
04:00

Clear
-17°
feels like: -27°
Clear
Relative humidity: 74%, pressure: 746 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west
07:00

Overcast
-17°
feels like: -27°
Overcast
Relative humidity: 76%, pressure: 746 mm
Precipitations: 0.0 mm
Wind: 22 km/h, west
10:00

Overcast
-14°
feels like: -23°
Overcast
Relative humidity: 75%, pressure: 748 mm
Precipitations: 0.1 mm
Wind: 22 km/h, west
13:00

Overcast
-10°
feels like: -19°
Overcast
Relative humidity: 78%, pressure: 748 mm
Precipitations: 0.3 mm
Wind: 22 km/h, west
16:00

Partly cloudy
-10°
feels like: -16°
Partly cloudy
Relative humidity: 82%, pressure: 750 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northwest