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St. Catharines, ON — 1 hour detailed weather forecast


ON, Canada » St. Catharines


Forecast for today, Sunday, April 19, 2026
Detailed hourly forecast

11:00

Overcast
+6°
feels like: +2°
Overcast
Relative humidity: 50%, pressure: 753 mm
Precipitations: 0.1 mm
Wind: 22 km/h, northwest
12:00

Partly cloudy
+6°
feels like: +2°
Partly cloudy
Relative humidity: 51%, pressure: 753 mm
Precipitations: 0.1 mm
Wind: 22 km/h, northwest
13:00

Partly cloudy
+6°
feels like: +2°
Partly cloudy
Relative humidity: 53%, pressure: 753 mm
Precipitations: 0.1 mm
Wind: 22 km/h, west
14:00

Partly cloudy
+6°
feels like: +3°
Partly cloudy
Relative humidity: 56%, pressure: 753 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west
15:00

A mix of sun and cloud
+7°
feels like: +3°
A mix of sun and cloud
Relative humidity: 52%, pressure: 753 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west
16:00

A mix of sun and cloud
+7°
feels like: +3°
A mix of sun and cloud
Relative humidity: 52%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west
17:00

A mix of sun and cloud
+7°
feels like: +3°
A mix of sun and cloud
Relative humidity: 52%, pressure: 752 mm
Precipitations: 0.2 mm
Wind: 18 km/h, west
18:00

Rain
+5°
feels like: +1°
Rain
Relative humidity: 70%, pressure: 753 mm
Precipitations: 0.7 mm
Wind: 14 km/h, west
19:00

Overcast
+4°
feels like: +1°
Overcast
Relative humidity: 74%, pressure: 753 mm
Precipitations: 0.2 mm
Wind: 14 km/h, west
20:00

Overcast
+3°
feels like: +-1°
Overcast
Relative humidity: 83%, pressure: 754 mm
Precipitations: 0.1 mm
Wind: 11 km/h, southwest
21:00

Overcast
+3°
feels like: +-1°
Overcast
Relative humidity: 85%, pressure: 754 mm
Precipitations: 0.0 mm
Wind: 14 km/h, west
22:00

Overcast
+3°
feels like: +-1°
Overcast
Relative humidity: 81%, pressure: 755 mm
Precipitations: 0.2 mm
Wind: 14 km/h, northwest
23:00

Overcast
+3°
feels like: +-2°
Overcast
Relative humidity: 57%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 18 km/h, northwest
00:00

Mainly sunny
+1°
feels like: +-3°
Mainly sunny
Relative humidity: 54%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 18 km/h, northwest
01:00

Mainly sunny
+1°
feels like: +-4°
Mainly sunny
Relative humidity: 57%, pressure: 757 mm
Precipitations: 0.0 mm
Wind: 18 km/h, northwest
02:00

Mainly sunny

feels like: -5°
Mainly sunny
Relative humidity: 57%, pressure: 757 mm
Precipitations: 0.0 mm
Wind: 22 km/h, northwest
03:00

Mainly sunny

feels like: -5°
Mainly sunny
Relative humidity: 54%, pressure: 757 mm
Precipitations: 0.0 mm
Wind: 18 km/h, northwest
04:00

Mainly sunny

feels like: -5°
Mainly sunny
Relative humidity: 51%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 18 km/h, northwest
05:00

Mainly sunny

feels like: -5°
Mainly sunny
Relative humidity: 50%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 18 km/h, northwest
06:00

Partly cloudy
+1°
feels like: +-4°
Partly cloudy
Relative humidity: 43%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 18 km/h, northwest
07:00

Partly cloudy
+1°
feels like: +-4°
Partly cloudy
Relative humidity: 42%, pressure: 759 mm
Precipitations: 0.1 mm
Wind: 18 km/h, northwest
08:00

Partly cloudy

feels like: -5°
Partly cloudy
Relative humidity: 56%, pressure: 760 mm
Precipitations: 0.2 mm
Wind: 18 km/h, northwest
09:00

Partly cloudy
+1°
feels like: +-4°
Partly cloudy
Relative humidity: 50%, pressure: 761 mm
Precipitations: 0.3 mm
Wind: 22 km/h, northwest
10:00

Partly cloudy
+2°
feels like: +-3°
Partly cloudy
Relative humidity: 44%, pressure: 761 mm
Precipitations: 0.0 mm
Wind: 22 km/h, northwest
11:00

Partly cloudy
+3°
feels like: +-2°
Partly cloudy
Relative humidity: 44%, pressure: 762 mm
Precipitations: 0.1 mm
Wind: 22 km/h, northwest