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St. Thomas, ON — 3 hour detailed weather forecast


ON, Canada » St. Thomas


Forecast for today, Wednesday, December 24, 2025
Detailed forecast - 3 hours intervals

07:00

A mix of sun and cloud
-1°
feels like: -5°
A mix of sun and cloud
Relative humidity: 84%, pressure: 750 mm
Precipitations: 0.0 mm
Wind: 14 km/h, northwest
10:00

Partly cloudy

feels like: -3°
Partly cloudy
Relative humidity: 69%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 11 km/h, north
13:00

A mix of sun and cloud
+1°
feels like: +1°
A mix of sun and cloud
Relative humidity: 64%, pressure: 751 mm
Precipitations: 0.0 mm
Wind: 4 km/h, south
16:00

Overcast
+1°
feels like: +-2°
Overcast
Relative humidity: 72%, pressure: 750 mm
Precipitations: 0.0 mm
Wind: 7 km/h, south
19:00

Overcast

feels like: 0°
Overcast
Relative humidity: 89%, pressure: 749 mm
Precipitations: 0.0 mm
Wind: 4 km/h, southwest
22:00

Overcast

feels like: -3°
Overcast
Relative humidity: 88%, pressure: 747 mm
Precipitations: 0.0 mm
Wind: 7 km/h, south
01:00

Light snow

feels like: -2°
Light snow
Relative humidity: 89%, pressure: 745 mm
Precipitations: 0.8 mm
Wind: 4 km/h, south
04:00

Overcast
+1°
feels like: +-1°
Overcast
Relative humidity: 87%, pressure: 743 mm
Precipitations: 0.1 mm
Wind: 7 km/h, southwest
07:00

Mainly sunny

feels like: -4°
Mainly sunny
Relative humidity: 87%, pressure: 744 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northwest