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St. Catharines, ON — 1 hour detailed weather forecast


ON, Canada » St. Catharines


Forecast for today, Monday, May 11, 2026
Detailed hourly forecast

03:00

Overcast
+8°
feels like: +7°
Overcast
Relative humidity: 84%, pressure: 757 mm
Precipitations: 0.0 mm
Wind: 7 km/h, north
04:00

Overcast
+8°
feels like: +6°
Overcast
Relative humidity: 85%, pressure: 757 mm
Precipitations: 0.0 mm
Wind: 7 km/h, north
05:00

Overcast
+7°
feels like: +6°
Overcast
Relative humidity: 83%, pressure: 757 mm
Precipitations: 0.0 mm
Wind: 7 km/h, north
06:00

A mix of sun and cloud
+8°
feels like: +6°
A mix of sun and cloud
Relative humidity: 77%, pressure: 757 mm
Precipitations: 0.0 mm
Wind: 7 km/h, north
07:00

A mix of sun and cloud
+8°
feels like: +6°
A mix of sun and cloud
Relative humidity: 77%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 7 km/h, north
08:00

A mix of sun and cloud
+8°
feels like: +7°
A mix of sun and cloud
Relative humidity: 65%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 7 km/h, north
09:00

A mix of sun and cloud
+9°
feels like: +7°
A mix of sun and cloud
Relative humidity: 60%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 7 km/h, northwest
10:00

A mix of sun and cloud
+9°
feels like: +7°
A mix of sun and cloud
Relative humidity: 55%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northwest
11:00

A mix of sun and cloud
+10°
feels like: +8°
A mix of sun and cloud
Relative humidity: 47%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 11 km/h, west
12:00

Mainly sunny
+10°
feels like: +10°
Mainly sunny
Relative humidity: 42%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 11 km/h, west
13:00

Mainly sunny
+11°
feels like: +11°
Mainly sunny
Relative humidity: 44%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 14 km/h, northwest
14:00

Mainly sunny
+12°
feels like: +12°
Mainly sunny
Relative humidity: 39%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 14 km/h, northwest
15:00

Partly cloudy
+12°
feels like: +12°
Partly cloudy
Relative humidity: 35%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 14 km/h, northwest
16:00

Partly cloudy
+12°
feels like: +12°
Partly cloudy
Relative humidity: 34%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northwest
17:00

Partly cloudy
+11°
feels like: +11°
Partly cloudy
Relative humidity: 35%, pressure: 757 mm
Precipitations: 0.0 mm
Wind: 11 km/h, north
18:00

Sunny
+11°
feels like: +11°
Clear
Relative humidity: 37%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 7 km/h, north
19:00

Sunny
+10°
feels like: +10°
Clear
Relative humidity: 42%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 7 km/h, north
20:00

Sunny
+9°
feels like: +8°
Clear
Relative humidity: 52%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 4 km/h, north
21:00

Clear
+8°
feels like: +7°
Clear
Relative humidity: 58%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 7 km/h, north
22:00

Clear
+8°
feels like: +6°
Clear
Relative humidity: 58%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 11 km/h, north
23:00

Clear
+7°
feels like: +4°
Clear
Relative humidity: 62%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 11 km/h, north
00:00

Clear
+5°
feels like: +3°
Clear
Relative humidity: 69%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 11 km/h, north
01:00

Clear
+5°
feels like: +2°
Clear
Relative humidity: 71%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 7 km/h, north
02:00

Clear
+4°
feels like: +3°
Clear
Relative humidity: 73%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 7 km/h, north
03:00

Clear
+4°
feels like: +3°
Clear
Relative humidity: 76%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 4 km/h, northwest