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St. Catharines, ON — 1 hour detailed weather forecast


ON, Canada » St. Catharines


Forecast for today, Thursday, June 18, 2026
Detailed hourly forecast

10:00

Showers
+24°
feels like: +24°
Showers
Relative humidity: 73%, pressure: 736 mm
Precipitations: 0.1 mm
Wind: 32 km/h, southwest
11:00

Showers
+24°
feels like: +24°
Showers
Relative humidity: 71%, pressure: 737 mm
Precipitations: 0.2 mm
Wind: 32 km/h, west
12:00

Light showers
+24°
feels like: +24°
Light showers
Relative humidity: 68%, pressure: 737 mm
Precipitations: 0.1 mm
Wind: 29 km/h, west
13:00

Light showers
+23°
feels like: +23°
Light showers
Relative humidity: 68%, pressure: 738 mm
Precipitations: 0.1 mm
Wind: 32 km/h, west
14:00

Light showers
+23°
feels like: +23°
Light showers
Relative humidity: 68%, pressure: 739 mm
Precipitations: 0.3 mm
Wind: 32 km/h, west
15:00

Light showers
+23°
feels like: +23°
Light showers
Relative humidity: 63%, pressure: 739 mm
Precipitations: 0.2 mm
Wind: 29 km/h, west
16:00

Light showers
+22°
feels like: +22°
Light showers
Relative humidity: 57%, pressure: 740 mm
Precipitations: 0.1 mm
Wind: 32 km/h, west
17:00

Light showers
+22°
feels like: +22°
Light showers
Relative humidity: 56%, pressure: 741 mm
Precipitations: 0.1 mm
Wind: 32 km/h, west
18:00

Sunny
+21°
feels like: +21°
Clear
Relative humidity: 64%, pressure: 742 mm
Precipitations: 0.0 mm
Wind: 25 km/h, west
19:00

Sunny
+20°
feels like: +20°
Clear
Relative humidity: 67%, pressure: 743 mm
Precipitations: 0.0 mm
Wind: 25 km/h, west
20:00

Sunny
+19°
feels like: +19°
Clear
Relative humidity: 69%, pressure: 744 mm
Precipitations: 0.0 mm
Wind: 25 km/h, west
21:00

Clear
+18°
feels like: +18°
Clear
Relative humidity: 71%, pressure: 744 mm
Precipitations: 0.0 mm
Wind: 22 km/h, west
22:00

Clear
+18°
feels like: +18°
Clear
Relative humidity: 72%, pressure: 745 mm
Precipitations: 0.0 mm
Wind: 22 km/h, west
23:00

Clear
+18°
feels like: +18°
Clear
Relative humidity: 73%, pressure: 746 mm
Precipitations: 0.0 mm
Wind: 22 km/h, west
00:00

Clear
+17°
feels like: +17°
Clear
Relative humidity: 75%, pressure: 746 mm
Precipitations: 0.0 mm
Wind: 22 km/h, west
01:00

Clear
+17°
feels like: +17°
Clear
Relative humidity: 75%, pressure: 746 mm
Precipitations: 0.0 mm
Wind: 22 km/h, west
02:00

Clear
+17°
feels like: +17°
Clear
Relative humidity: 78%, pressure: 746 mm
Precipitations: 0.0 mm
Wind: 22 km/h, west
03:00

Clear
+16°
feels like: +16°
Clear
Relative humidity: 79%, pressure: 746 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west
04:00

Clear
+16°
feels like: +16°
Clear
Relative humidity: 79%, pressure: 746 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west
05:00

Sunny
+16°
feels like: +16°
Clear
Relative humidity: 80%, pressure: 746 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west
06:00

Sunny
+16°
feels like: +16°
Clear
Relative humidity: 80%, pressure: 746 mm
Precipitations: 0.0 mm
Wind: 14 km/h, west
07:00

Sunny
+16°
feels like: +16°
Clear
Relative humidity: 78%, pressure: 747 mm
Precipitations: 0.0 mm
Wind: 14 km/h, west
08:00

Sunny
+17°
feels like: +17°
Clear
Relative humidity: 75%, pressure: 747 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west
09:00

Sunny
+18°
feels like: +18°
Clear
Relative humidity: 73%, pressure: 747 mm
Precipitations: 0.0 mm
Wind: 14 km/h, west
10:00

Sunny
+19°
feels like: +19°
Clear
Relative humidity: 68%, pressure: 747 mm
Precipitations: 0.0 mm
Wind: 18 km/h, west