Hourly Weather Forecast - St Thomas, Ontario, CA

12 AM
15°F
20%
10mph
WNW
Partly Cloudy
Humidity
70%
Feels like
2°F
Dew Point
7°F
1 AM
14°F
20%
10mph
W
Partly Cloudy
Humidity
69%
Feels like
1°F
Dew Point
6°F
2 AM
13°F
10%
11mph
W
Mostly Clear
Humidity
69%
Feels like
0°F
Dew Point
5°F
3 AM
12°F
10%
10mph
W
Mostly Clear
Humidity
70%
Feels like
-1°F
Dew Point
4°F
4 AM
12°F
10%
10mph
W
Mostly Clear
Humidity
71%
Feels like
-2°F
Dew Point
4°F
5 AM
11°F
10%
10mph
W
Mostly Clear
Humidity
73%
Feels like
-2°F
Dew Point
4°F
6 AM
11°F
10%
11mph
W
Mostly Clear
Humidity
73%
Feels like
-3°F
Dew Point
4°F
7 AM
10°F
10%
11mph
W
Mostly Clear
Humidity
72%
Feels like
-3°F
Dew Point
3°F
7:55 AM
8 AM
11°F
10%
11mph
W
Mostly Sunny
Humidity
69%
Feels like
-3°F
Dew Point
3°F
9 AM
13°F
10%
11mph
W
Sunny
Humidity
64%
Feels like
-1°F
Dew Point
3°F
10 AM
14°F
10%
12mph
W
Sunny
Humidity
60%
Feels like
0°F
Dew Point
3°F
11 AM
15°F
10%
13mph
W
Mostly Sunny
Humidity
58%
Feels like
1°F
Dew Point
3°F
12 PM
15°F
10%
13mph
W
Partly Cloudy
Humidity
57%
Feels like
1°F
Dew Point
3°F
1 PM
16°F
10%
13mph
W
Partly Cloudy
Humidity
57%
Feels like
2°F
Dew Point
3°F
2 PM
16°F
10%
13mph
W
Partly Cloudy
Humidity
56%
Feels like
2°F
Dew Point
3°F
3 PM
16°F
10%
13mph
W
Partly Cloudy
Humidity
56%
Feels like
2°F
Dew Point
3°F
4 PM
15°F
10%
12mph
W
Partly Cloudy
Humidity
56%
Feels like
2°F
Dew Point
3°F
5 PM
15°F
10%
11mph
W
Partly Cloudy
Humidity
57%
Feels like
2°F
Dew Point
3°F
5:01 PM
6 PM
14°F
10%
10mph
W
Partly Cloudy
Humidity
58%
Feels like
2°F
Dew Point
2°F
7 PM
14°F
0%
9mph
W
Partly Cloudy
Humidity
60%
Feels like
2°F
Dew Point
2°F
8 PM
13°F
10%
9mph
W
Partly Cloudy
Humidity
61%
Feels like
1°F
Dew Point
2°F
9 PM
13°F
10%
9mph
W
Partly Cloudy
Humidity
63%
Feels like
0°F
Dew Point
2°F
10 PM
12°F
10%
9mph
W
Partly Cloudy
Humidity
64%
Feels like
-1°F
Dew Point
2°F
11 PM
11°F
10%
9mph
W
Partly Cloudy
Humidity
65%
Feels like
-2°F
Dew Point
2°F

Snow and Ice Forecast Through Monday

Heavy Snow and Icing from Midwest to New England

A winter storm will deliver snow and significant icing from the Midwest to New England.

Monday's Weather Outlook

Monday's Weather Outlook

Satellite image of Hurricane Melissa

2025 Year in Review: Powerful Hurricanes in the Atlantic

A frame from an automated video of a tornado and its mesocyclone that derailed multiple train cars near Enderlin, North Dakota and destroyed multiple homes on June 20, 2025. (ChrisWx via Wikimedia Commons)

2025 Year in Review: Extreme Weather - January through June

Photos and videos from the Palisades Fire that started in the City of Los Angeles, January 8, 2025. (CAL FIRE_Official via Wikimedia Commons)

2025 Year in Review: Billion Dollar Disasters - The California Wildfires

Hurricane Erick at its peak intensity before making landfall on Guerrero, Mexico on June 19, 2025 (NOAA/Wikimedia Commons)

2025 Year in Review: Active Tropical Season for The Pacific

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide