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St. Catharines, ON — 3 hour detailed weather forecast


ON, Canada » St. Catharines


Forecast for today, Tuesday, November 18, 2025
Detailed forecast - 3 hours intervals

19:00

A mix of sun and cloud
+1°
feels like: +1°
A mix of sun and cloud
Relative humidity: 67%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 0 km/h, east
22:00

A mix of sun and cloud

feels like: 0°
A mix of sun and cloud
Relative humidity: 78%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 4 km/h, southeast
01:00

A mix of sun and cloud
+1°
feels like: +1°
A mix of sun and cloud
Relative humidity: 77%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 0 km/h, southeast
04:00

Mainly sunny
+1°
feels like: +1°
Mainly sunny
Relative humidity: 78%, pressure: 757 mm
Precipitations: 0.0 mm
Wind: 0 km/h, northeast
07:00

A mix of sun and cloud
+2°
feels like: +2°
A mix of sun and cloud
Relative humidity: 76%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 4 km/h, east
10:00

A mix of sun and cloud
+4°
feels like: +2°
A mix of sun and cloud
Relative humidity: 67%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 7 km/h, east
13:00

Overcast
+5°
feels like: +4°
Overcast
Relative humidity: 61%, pressure: 759 mm
Precipitations: 0.1 mm
Wind: 4 km/h, north
16:00

Overcast
+4°
feels like: +3°
Overcast
Relative humidity: 65%, pressure: 759 mm
Precipitations: 0.1 mm
Wind: 4 km/h, north
19:00

A mix of sun and cloud
+2°
feels like: +2°
A mix of sun and cloud
Relative humidity: 72%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 0 km/h, northeast