Weather.Knopka.ca
Your local weather forecast for today

St. Catharines, ON — 1 hour detailed weather forecast


ON, Canada » St. Catharines


Forecast for today, Tuesday, March 17, 2026
Detailed hourly forecast

11:00

Overcast
-6°
feels like: -15°
Overcast
Relative humidity: 59%, pressure: 751 mm
Precipitations: 0.0 mm
Wind: 32 km/h, west
12:00

Overcast
-6°
feels like: -15°
Overcast
Relative humidity: 59%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 32 km/h, west
13:00

Overcast
-5°
feels like: -14°
Overcast
Relative humidity: 57%, pressure: 752 mm
Precipitations: 0.0 mm
Wind: 32 km/h, west
14:00

Overcast
-5°
feels like: -13°
Overcast
Relative humidity: 56%, pressure: 753 mm
Precipitations: 0.0 mm
Wind: 32 km/h, west
15:00

Overcast
-5°
feels like: -13°
Overcast
Relative humidity: 56%, pressure: 753 mm
Precipitations: 0.0 mm
Wind: 32 km/h, west
16:00

Overcast
-5°
feels like: -13°
Overcast
Relative humidity: 55%, pressure: 754 mm
Precipitations: 0.1 mm
Wind: 29 km/h, west
17:00

Overcast
-5°
feels like: -13°
Overcast
Relative humidity: 56%, pressure: 754 mm
Precipitations: 0.1 mm
Wind: 29 km/h, west
18:00

Overcast
-5°
feels like: -13°
Overcast
Relative humidity: 58%, pressure: 755 mm
Precipitations: 0.1 mm
Wind: 25 km/h, west
19:00

Overcast
-5°
feels like: -13°
Overcast
Relative humidity: 59%, pressure: 756 mm
Precipitations: 0.1 mm
Wind: 25 km/h, west
20:00

Overcast
-6°
feels like: -13°
Overcast
Relative humidity: 59%, pressure: 756 mm
Precipitations: 0.0 mm
Wind: 22 km/h, west
21:00

Mainly sunny
-6°
feels like: -13°
Mainly sunny
Relative humidity: 57%, pressure: 757 mm
Precipitations: 0.0 mm
Wind: 22 km/h, west
22:00

Mainly sunny
-6°
feels like: -13°
Mainly sunny
Relative humidity: 54%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 22 km/h, west
23:00

Mainly sunny
-6°
feels like: -13°
Mainly sunny
Relative humidity: 56%, pressure: 758 mm
Precipitations: 0.0 mm
Wind: 22 km/h, west
00:00

Mainly sunny
-6°
feels like: -12°
Mainly sunny
Relative humidity: 61%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 14 km/h, west
01:00

Mainly sunny
-6°
feels like: -11°
Mainly sunny
Relative humidity: 62%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 11 km/h, west
02:00

Mainly sunny
-6°
feels like: -10°
Mainly sunny
Relative humidity: 62%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 7 km/h, southwest
03:00

Mainly sunny
-6°
feels like: -11°
Mainly sunny
Relative humidity: 64%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 7 km/h, southwest
04:00

Mainly sunny
-5°
feels like: -9°
Mainly sunny
Relative humidity: 60%, pressure: 759 mm
Precipitations: 0.0 mm
Wind: 7 km/h, southwest
05:00

Mainly sunny
-5°
feels like: -9°
Mainly sunny
Relative humidity: 60%, pressure: 760 mm
Precipitations: 0.0 mm
Wind: 7 km/h, south
06:00

Mainly sunny
-6°
feels like: -10°
Mainly sunny
Relative humidity: 62%, pressure: 760 mm
Precipitations: 0.0 mm
Wind: 7 km/h, south
07:00

Mainly sunny
-7°
feels like: -11°
Mainly sunny
Relative humidity: 64%, pressure: 760 mm
Precipitations: 0.0 mm
Wind: 7 km/h, south
08:00

Mainly sunny
-6°
feels like: -11°
Mainly sunny
Relative humidity: 64%, pressure: 761 mm
Precipitations: 0.0 mm
Wind: 7 km/h, southeast
09:00

Overcast
-4°
feels like: -9°
Overcast
Relative humidity: 56%, pressure: 761 mm
Precipitations: 0.0 mm
Wind: 11 km/h, southeast
10:00

Overcast
-3°
feels like: -7°
Overcast
Relative humidity: 54%, pressure: 761 mm
Precipitations: 0.0 mm
Wind: 11 km/h, south
11:00

Overcast
-2°
feels like: -7°
Overcast
Relative humidity: 54%, pressure: 761 mm
Precipitations: 0.0 mm
Wind: 14 km/h, south