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St. Catharines, ON — 1 hour detailed weather forecast


ON, Canada » St. Catharines


Forecast for today, Monday, December 15, 2025
Detailed hourly forecast

19:00

Overcast
-4°
feels like: -11°
Overcast
Relative humidity: 74%, pressure: 755 mm
Precipitations: 0.0 mm
Wind: 29 km/h, southwest
20:00

A mix of sun and cloud
-4°
feels like: -11°
A mix of sun and cloud
Relative humidity: 75%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 25 km/h, west
21:00

A mix of sun and cloud
-4°
feels like: -11°
A mix of sun and cloud
Relative humidity: 73%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 25 km/h, west
22:00

A mix of sun and cloud
-5°
feels like: -12°
A mix of sun and cloud
Relative humidity: 64%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 25 km/h, west
23:00

A mix of sun and cloud
-6°
feels like: -13°
A mix of sun and cloud
Relative humidity: 61%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 22 km/h, west
00:00

A mix of sun and cloud
-6°
feels like: -13°
A mix of sun and cloud
Relative humidity: 63%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west
01:00

A mix of sun and cloud
-6°
feels like: -13°
A mix of sun and cloud
Relative humidity: 64%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west
02:00

A mix of sun and cloud
-7°
feels like: -13°
A mix of sun and cloud
Relative humidity: 67%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west
03:00

A mix of sun and cloud
-7°
feels like: -14°
A mix of sun and cloud
Relative humidity: 72%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 18 km/h, southwest
04:00

A mix of sun and cloud
-8°
feels like: -14°
A mix of sun and cloud
Relative humidity: 75%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 14 km/h, southwest
05:00

Partly cloudy
-8°
feels like: -14°
Partly cloudy
Relative humidity: 77%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 14 km/h, southwest
06:00

Partly cloudy
-8°
feels like: -14°
Partly cloudy
Relative humidity: 78%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 14 km/h, southwest
07:00

Partly cloudy
-8°
feels like: -14°
Partly cloudy
Relative humidity: 80%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 14 km/h, southwest
08:00

Overcast
-8°
feels like: -14°
Overcast
Relative humidity: 80%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 11 km/h, southwest
09:00

Overcast
-6°
feels like: -12°
Overcast
Relative humidity: 77%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 11 km/h, southwest
10:00

Overcast
-5°
feels like: -10°
Overcast
Relative humidity: 73%, pressure: 757 mm
Precipitations: 0.0 mm
Wind: 11 km/h, southwest
11:00

Overcast
-4°
feels like: -10°
Overcast
Relative humidity: 73%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 14 km/h, southwest
12:00

Overcast
-3°
feels like: -9°
Overcast
Relative humidity: 74%, pressure: 755 mm
Precipitations: 0.0 mm
Wind: 18 km/h, southwest
13:00

Overcast
-2°
feels like: -8°
Overcast
Relative humidity: 74%, pressure: 754 mm
Precipitations: 0.0 mm
Wind: 22 km/h, southwest
14:00

A mix of sun and cloud
-1°
feels like: -7°
A mix of sun and cloud
Relative humidity: 70%, pressure: 754 mm
Precipitations: 0.0 mm
Wind: 22 km/h, southwest
15:00

A mix of sun and cloud
-1°
feels like: -7°
A mix of sun and cloud
Relative humidity: 69%, pressure: 753 mm
Precipitations: 0.0 mm
Wind: 22 km/h, southwest
16:00

A mix of sun and cloud

feels like: -6°
A mix of sun and cloud
Relative humidity: 69%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 22 km/h, southwest
17:00

A mix of sun and cloud

feels like: -6°
A mix of sun and cloud
Relative humidity: 70%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 25 km/h, southwest
18:00

A mix of sun and cloud

feels like: -6°
A mix of sun and cloud
Relative humidity: 69%, pressure: 751 mm
Precipitations: 0.0 mm
Wind: 25 km/h, southwest
19:00

A mix of sun and cloud
+1°
feels like: +-6°
A mix of sun and cloud
Relative humidity: 70%, pressure: 751 mm
Precipitations: 0.0 mm
Wind: 25 km/h, southwest