Hourly Weather Forecast - St Catharines, Ontario, CA

12 AM
25°F
10%
13mph
WNW
Mostly Cloudy
Humidity
60%
Feels like
13°F
Dew Point
13°F
1 AM
24°F
10%
13mph
WNW
Mostly Cloudy
Humidity
61%
Feels like
13°F
Dew Point
13°F
2 AM
24°F
10%
12mph
WNW
Partly Cloudy
Humidity
61%
Feels like
12°F
Dew Point
12°F
3 AM
23°F
10%
12mph
W
Partly Cloudy
Humidity
62%
Feels like
12°F
Dew Point
12°F
4 AM
23°F
10%
12mph
W
Mostly Clear
Humidity
64%
Feels like
12°F
Dew Point
13°F
5 AM
23°F
10%
11mph
W
Mostly Clear
Humidity
67%
Feels like
12°F
Dew Point
14°F
6 AM
23°F
10%
11mph
W
Mostly Clear
Humidity
69%
Feels like
12°F
Dew Point
15°F
7 AM
24°F
10%
10mph
W
Clear
Humidity
68%
Feels like
14°F
Dew Point
15°F
7:45 AM
8 AM
26°F
10%
10mph
W
Sunny
Humidity
68%
Feels like
16°F
Dew Point
17°F
9 AM
27°F
10%
10mph
W
Mostly Sunny
Humidity
67%
Feels like
18°F
Dew Point
18°F
10 AM
29°F
10%
10mph
W
Partly Cloudy
Humidity
62%
Feels like
20°F
Dew Point
17°F
11 AM
30°F
10%
10mph
W
Partly Cloudy
Humidity
61%
Feels like
21°F
Dew Point
18°F
12 PM
31°F
10%
11mph
W
Mostly Cloudy
Humidity
56%
Feels like
22°F
Dew Point
17°F
1 PM
32°F
10%
11mph
WSW
Cloudy
Humidity
52%
Feels like
23°F
Dew Point
17°F
2 PM
32°F
10%
11mph
WSW
Cloudy
Humidity
51%
Feels like
24°F
Dew Point
16°F
3 PM
32°F
10%
10mph
WSW
Cloudy
Humidity
53%
Feels like
24°F
Dew Point
17°F
4 PM
31°F
10%
10mph
WSW
Cloudy
Humidity
57%
Feels like
23°F
Dew Point
18°F
4:45 PM
5 PM
31°F
10%
9mph
SW
Cloudy
Humidity
62%
Feels like
22°F
Dew Point
19°F
6 PM
30°F
10%
9mph
SW
Mostly Cloudy
Humidity
66%
Feels like
22°F
Dew Point
20°F
7 PM
29°F
10%
9mph
SSW
Mostly Cloudy
Humidity
70%
Feels like
21°F
Dew Point
20°F
8 PM
28°F
10%
9mph
SSW
Mostly Cloudy
Humidity
64%
Feels like
20°F
Dew Point
17°F
9 PM
27°F
10%
8mph
SSW
Cloudy
Humidity
65%
Feels like
19°F
Dew Point
17°F
10 PM
27°F
10%
8mph
SSW
Cloudy
Humidity
65%
Feels like
19°F
Dew Point
17°F
11 PM
26°F
10%
7mph
S
Cloudy
Humidity
67%
Feels like
18°F
Dew Point
17°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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