Hourly Weather Forecast - St Thomas, Ontario, CA

12 AM
21°F
0%
10mph
W
Partly Cloudy
Humidity
65%
Feels like
10°F
Dew Point
11°F
1 AM
21°F
0%
9mph
W
Partly Cloudy
Humidity
66%
Feels like
11°F
Dew Point
11°F
2 AM
21°F
0%
7mph
WSW
Partly Cloudy
Humidity
68%
Feels like
12°F
Dew Point
12°F
3 AM
20°F
0%
6mph
WSW
Partly Cloudy
Humidity
72%
Feels like
12°F
Dew Point
13°F
4 AM
21°F
0%
6mph
SW
Mostly Cloudy
Humidity
75%
Feels like
13°F
Dew Point
14°F
5 AM
21°F
0%
6mph
SSW
Mostly Cloudy
Humidity
77%
Feels like
13°F
Dew Point
15°F
6 AM
22°F
0%
8mph
SSW
Mostly Cloudy
Humidity
79%
Feels like
13°F
Dew Point
17°F
7 AM
24°F
0%
10mph
SSW
Cloudy
Humidity
77%
Feels like
14°F
Dew Point
18°F
7:51 AM
8 AM
26°F
0%
11mph
S
Cloudy
Humidity
73%
Feels like
16°F
Dew Point
19°F
9 AM
29°F
0%
13mph
S
Cloudy
Humidity
66%
Feels like
18°F
Dew Point
19°F
10 AM
31°F
0%
14mph
S
Cloudy
Humidity
65%
Feels like
21°F
Dew Point
21°F
11 AM
33°F
0%
15mph
S
Cloudy
Humidity
62%
Feels like
23°F
Dew Point
21°F
12 PM
34°F
0%
15mph
S
Cloudy
Humidity
64%
Feels like
24°F
Dew Point
23°F
1 PM
35°F
0%
15mph
S
Cloudy
Humidity
61%
Feels like
26°F
Dew Point
23°F
2 PM
36°F
0%
15mph
SSW
Cloudy
Humidity
58%
Feels like
27°F
Dew Point
23°F
3 PM
37°F
0%
15mph
SSW
Cloudy
Humidity
58%
Feels like
28°F
Dew Point
23°F
4 PM
37°F
10%
14mph
SSW
Cloudy
Humidity
56%
Feels like
28°F
Dew Point
23°F
4:53 PM
5 PM
37°F
20%
13mph
SSW
Cloudy
Humidity
58%
Feels like
29°F
Dew Point
23°F
6 PM
37°F
30%
12mph
SW
30% Chance Frozen Mix
Humidity
60%
Feels like
28°F
Dew Point
24°F
7 PM
36°F
40%
12mph
SW
40% Chance of Flurries
Humidity
65%
Feels like
28°F
Dew Point
26°F
8 PM
35°F
40%
11mph
WSW
40% Chance of Flurries
Humidity
71%
Feels like
27°F
Dew Point
27°F
9 PM
34°F
50%
11mph
WSW
50% Chance of Flurries
Humidity
78%
Feels like
26°F
Dew Point
28°F
10 PM
33°F
40%
11mph
WSW
40% Chance of Flurries
Humidity
85%
Feels like
24°F
Dew Point
29°F
11 PM
32°F
30%
11mph
WSW
30% Chance Snow Showers
Humidity
84%
Feels like
23°F
Dew Point
28°F

Forecast Peak Wind Gusts Today

High Winds, Rain, and Snow Cross the Country

A clipper moving over the Great Lakes brings rain, snow, and high winds through the Atlantic Coastline.

Rainfall and Snowfall Totals Through Friday

Atmospheric River Symptoms Repeat in the Northwest

Thursday's Weather Outlook

Today's Weather Outlook

Flu Update Valid For Week Ending December 6, 2025

Weekly Flu Update: Flu Exceeds Annual Baseline

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

How to Measure Snow via NWS

How To Measure Snow

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