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St. Catharines, ON — 1 hour detailed weather forecast


ON, Canada » St. Catharines


Forecast for today, Saturday, March 21, 2026
Detailed hourly forecast

07:00

Overcast
+1°
feels like: +-1°
Overcast
Relative humidity: 92%, pressure: 753 mm
Precipitations: 0.0 mm
Wind: 7 km/h, north
08:00

Overcast
+1°
feels like: +-2°
Overcast
Relative humidity: 86%, pressure: 754 mm
Precipitations: 0.0 mm
Wind: 7 km/h, north
09:00

A mix of sun and cloud
+2°
feels like: +-1°
A mix of sun and cloud
Relative humidity: 83%, pressure: 754 mm
Precipitations: 0.0 mm
Wind: 11 km/h, north
10:00

A mix of sun and cloud
+2°
feels like: +-1°
A mix of sun and cloud
Relative humidity: 82%, pressure: 755 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northeast
11:00

A mix of sun and cloud
+3°
feels like: +0°
A mix of sun and cloud
Relative humidity: 78%, pressure: 755 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northeast
12:00

Overcast
+4°
feels like: +1°
Overcast
Relative humidity: 69%, pressure: 755 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northeast
13:00

Overcast
+5°
feels like: +2°
Overcast
Relative humidity: 69%, pressure: 755 mm
Precipitations: 0.0 mm
Wind: 11 km/h, north
14:00

Overcast
+4°
feels like: +1°
Overcast
Relative humidity: 69%, pressure: 754 mm
Precipitations: 0.0 mm
Wind: 11 km/h, north
15:00

Overcast
+4°
feels like: +0°
Overcast
Relative humidity: 71%, pressure: 754 mm
Precipitations: 0.0 mm
Wind: 11 km/h, north
16:00

Overcast
+3°
feels like: +0°
Overcast
Relative humidity: 71%, pressure: 753 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northeast
17:00

Overcast
+3°
feels like: +0°
Overcast
Relative humidity: 71%, pressure: 753 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northeast
18:00

Overcast
+3°
feels like: +-1°
Overcast
Relative humidity: 74%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northeast
19:00

Overcast
+3°
feels like: +-1°
Overcast
Relative humidity: 77%, pressure: 751 mm
Precipitations: 0.0 mm
Wind: 14 km/h, east
20:00

Light showers
+2°
feels like: +-2°
Light showers
Relative humidity: 80%, pressure: 751 mm
Precipitations: 0.2 mm
Wind: 14 km/h, east
21:00

A mix of sun and cloud
+2°
feels like: +-2°
A mix of sun and cloud
Relative humidity: 84%, pressure: 750 mm
Precipitations: 0.1 mm
Wind: 14 km/h, east
22:00

A mix of sun and cloud
+2°
feels like: +-2°
A mix of sun and cloud
Relative humidity: 82%, pressure: 749 mm
Precipitations: 0.0 mm
Wind: 11 km/h, east
23:00

A mix of sun and cloud
+2°
feels like: +-1°
A mix of sun and cloud
Relative humidity: 81%, pressure: 748 mm
Precipitations: 0.0 mm
Wind: 11 km/h, east
00:00

Overcast
+2°
feels like: +0°
Overcast
Relative humidity: 82%, pressure: 747 mm
Precipitations: 0.0 mm
Wind: 7 km/h, southeast
01:00

Overcast
+2°
feels like: +0°
Overcast
Relative humidity: 86%, pressure: 747 mm
Precipitations: 0.0 mm
Wind: 4 km/h, southeast
02:00

Overcast
+2°
feels like: +2°
Overcast
Relative humidity: 84%, pressure: 746 mm
Precipitations: 0.0 mm
Wind: 4 km/h, south
03:00

Overcast
+3°
feels like: +3°
Overcast
Relative humidity: 80%, pressure: 745 mm
Precipitations: 0.0 mm
Wind: 4 km/h, south
04:00

Overcast
+3°
feels like: +2°
Overcast
Relative humidity: 86%, pressure: 744 mm
Precipitations: 0.0 mm
Wind: 4 km/h, southwest
05:00

Light showers
+3°
feels like: +1°
Light showers
Relative humidity: 88%, pressure: 744 mm
Precipitations: 0.8 mm
Wind: 4 km/h, southwest
06:00

Overcast
+5°
feels like: +3°
Overcast
Relative humidity: 85%, pressure: 744 mm
Precipitations: 0.1 mm
Wind: 7 km/h, southwest
07:00

Light showers
+5°
feels like: +3°
Light showers
Relative humidity: 86%, pressure: 744 mm
Precipitations: 0.5 mm
Wind: 7 km/h, southwest