Hourly Weather Forecast - St Catharines, Ontario, CA

7 AM
40°F
10%
22mph
SW
Windy
Humidity
75%
Feels like
30°F
Dew Point
33°F
7:43 AM
8 AM
40°F
10%
21mph
SW
Windy
Humidity
76%
Feels like
30°F
Dew Point
33°F
9 AM
40°F
0%
21mph
SW
Windy
Humidity
75%
Feels like
31°F
Dew Point
33°F
10 AM
40°F
0%
20mph
WSW
Cloudy
Humidity
75%
Feels like
31°F
Dew Point
33°F
11 AM
40°F
0%
19mph
WSW
Mostly Cloudy
Humidity
75%
Feels like
31°F
Dew Point
33°F
12 PM
40°F
0%
19mph
WSW
Cloudy
Humidity
75%
Feels like
31°F
Dew Point
33°F
1 PM
40°F
0%
18mph
WSW
Cloudy
Humidity
76%
Feels like
31°F
Dew Point
33°F
2 PM
40°F
0%
17mph
W
Mostly Cloudy
Humidity
76%
Feels like
31°F
Dew Point
33°F
3 PM
39°F
0%
15mph
W
Mostly Cloudy
Humidity
76%
Feels like
30°F
Dew Point
32°F
4 PM
38°F
0%
14mph
W
Partly Cloudy
Humidity
76%
Feels like
30°F
Dew Point
31°F
4:43 PM
5 PM
37°F
0%
12mph
W
Partly Cloudy
Humidity
76%
Feels like
29°F
Dew Point
30°F
6 PM
36°F
0%
10mph
W
Mostly Clear
Humidity
77%
Feels like
29°F
Dew Point
30°F
7 PM
35°F
0%
9mph
WSW
Mostly Clear
Humidity
78%
Feels like
29°F
Dew Point
29°F
8 PM
34°F
0%
7mph
SW
Mostly Clear
Humidity
80%
Feels like
28°F
Dew Point
29°F
9 PM
33°F
0%
6mph
SW
Partly Cloudy
Humidity
82%
Feels like
28°F
Dew Point
28°F
10 PM
33°F
0%
6mph
SSW
Partly Cloudy
Humidity
81%
Feels like
27°F
Dew Point
28°F
11 PM
32°F
0%
6mph
SSW
Partly Cloudy
Humidity
80%
Feels like
26°F
Dew Point
27°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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