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St. Catharines, ON — 3 hour detailed weather forecast


ON, Canada » St. Catharines


Forecast for today, Wednesday, July 16, 2025
Detailed forecast - 3 hours intervals

17:00

A mix of sun and cloud
+31°
feels like: +34°
A mix of sun and cloud
Relative humidity: 54%, pressure: 750 mm
Precipitations: 0.1 mm
Wind: 7 km/h, southwest
20:00

Partly cloudy
+28°
feels like: +30°
Partly cloudy
Relative humidity: 68%, pressure: 749 mm
Precipitations: 0.0 mm
Wind: 14 km/h, south
23:00

Clear
+25°
feels like: +26°
Clear
Relative humidity: 85%, pressure: 749 mm
Precipitations: 0.0 mm
Wind: 18 km/h, southwest
02:00

A mix of sun and cloud
+25°
feels like: +25°
A mix of sun and cloud
Relative humidity: 90%, pressure: 748 mm
Precipitations: 0.0 mm
Wind: 22 km/h, southwest
05:00

A mix of sun and cloud
+25°
feels like: +26°
A mix of sun and cloud
Relative humidity: 90%, pressure: 748 mm
Precipitations: 0.1 mm
Wind: 22 km/h, southwest
08:00

Showers
+26°
feels like: +27°
Showers
Relative humidity: 91%, pressure: 747 mm
Precipitations: 1.4 mm
Wind: 25 km/h, southwest
11:00

Light showers
+29°
feels like: +32°
Light showers
Relative humidity: 73%, pressure: 746 mm
Precipitations: 0.2 mm
Wind: 32 km/h, southwest
14:00

A mix of sun and cloud
+28°
feels like: +30°
A mix of sun and cloud
Relative humidity: 70%, pressure: 747 mm
Precipitations: 0.2 mm
Wind: 29 km/h, southwest
17:00

Sunny
+28°
feels like: +29°
Clear
Relative humidity: 59%, pressure: 748 mm
Precipitations: 0.2 mm
Wind: 25 km/h, west
20:00

Mainly sunny
+23°
feels like: +23°
Mainly sunny
Relative humidity: 67%, pressure: 751 mm
Precipitations: 0.0 mm
Wind: 25 km/h, northwest