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St. Catharines, ON — 3 hour detailed weather forecast


ON, Canada » St. Catharines


Forecast for today, Wednesday, July 15, 2026
Detailed forecast - 3 hours intervals

08:00

Sunny
+27°
feels like: +28°
Clear
Relative humidity: 75%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 11 km/h, west
11:00

Sunny
+30°
feels like: +32°
Clear
Relative humidity: 57%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 11 km/h, west
14:00

Sunny
+32°
feels like: +34°
Clear
Relative humidity: 51%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west
17:00

Overcast
+31°
feels like: +32°
Overcast
Relative humidity: 46%, pressure: 751 mm
Precipitations: 0.0 mm
Wind: 18 km/h, northwest
20:00

Partly cloudy
+27°
feels like: +28°
Partly cloudy
Relative humidity: 55%, pressure: 751 mm
Precipitations: 0.0 mm
Wind: 11 km/h, northwest
23:00

Partly cloudy
+26°
feels like: +26°
Partly cloudy
Relative humidity: 63%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 4 km/h, northwest
02:00

Mainly sunny
+24°
feels like: +24°
Mainly sunny
Relative humidity: 63%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 7 km/h, west
05:00

Overcast
+23°
feels like: +24°
Overcast
Relative humidity: 65%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 11 km/h, west
08:00

Partly cloudy
+23°
feels like: +23°
Partly cloudy
Relative humidity: 67%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 11 km/h, west
11:00

Mainly sunny
+27°
feels like: +28°
Mainly sunny
Relative humidity: 57%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 11 km/h, west