Hourly Weather Forecast - St. Marys, Ontario, CA

12 AM
41°F
0%
15mph
WNW
Cloudy
Humidity
93%
Feels like
33°F
Dew Point
39°F
1 AM
39°F
0%
14mph
WNW
Cloudy
Humidity
91%
Feels like
31°F
Dew Point
37°F
3 AM
37°F
0%
13mph
WNW
Cloudy
Humidity
90%
Feels like
29°F
Dew Point
35°F
4 AM
36°F
0%
13mph
WNW
Mostly Cloudy
Humidity
88%
Feels like
28°F
Dew Point
33°F
5 AM
35°F
0%
12mph
WNW
Partly Cloudy
Humidity
86%
Feels like
27°F
Dew Point
32°F
6 AM
35°F
0%
11mph
W
Mostly Cloudy
Humidity
86%
Feels like
27°F
Dew Point
31°F
6:49 AM
7 AM
34°F
0%
10mph
W
Mostly Cloudy
Humidity
86%
Feels like
27°F
Dew Point
31°F
8 AM
35°F
0%
10mph
WSW
Mostly Cloudy
Humidity
85%
Feels like
27°F
Dew Point
31°F
9 AM
36°F
0%
11mph
WSW
Mostly Cloudy
Humidity
82%
Feels like
28°F
Dew Point
31°F
10 AM
38°F
0%
14mph
WSW
Partly Cloudy
Humidity
78%
Feels like
29°F
Dew Point
32°F
11 AM
40°F
0%
15mph
WSW
Partly Cloudy
Humidity
73%
Feels like
31°F
Dew Point
32°F
12 PM
42°F
0%
17mph
SW
Partly Cloudy
Humidity
67%
Feels like
34°F
Dew Point
32°F
1 PM
44°F
0%
19mph
SW
Mostly Sunny
Humidity
62%
Feels like
37°F
Dew Point
32°F
2 PM
46°F
0%
19mph
SW
Sunny
Humidity
58%
Feels like
39°F
Dew Point
32°F
3 PM
48°F
0%
20mph
SW
Sunny
Humidity
55%
Feels like
41°F
Dew Point
32°F
4 PM
49°F
0%
20mph
SW
Sunny
Humidity
54%
Feels like
42°F
Dew Point
33°F
5 PM
49°F
0%
19mph
SW
Sunny
Humidity
55%
Feels like
42°F
Dew Point
33°F
6 PM
48°F
0%
18mph
SW
Sunny
Humidity
58%
Feels like
42°F
Dew Point
34°F
6:22 PM
7 PM
47°F
0%
16mph
SW
Sunny
Humidity
62%
Feels like
40°F
Dew Point
35°F
8 PM
45°F
0%
14mph
SW
Clear
Humidity
67%
Feels like
39°F
Dew Point
35°F
9 PM
44°F
0%
13mph
SW
Clear
Humidity
70%
Feels like
38°F
Dew Point
35°F
10 PM
43°F
0%
13mph
SW
Clear
Humidity
72%
Feels like
37°F
Dew Point
35°F
11 PM
42°F
0%
12mph
SW
Clear
Humidity
74%
Feels like
36°F
Dew Point
35°F

Today's Severe Thunderstorm Outlook

Severe Storms Pepper Southern Plains to Lower Great Lakes

There will be plenty of severe weather headaches across the nation's midsection and Eastern U.S. through Saturday.

Weekend Weather Outlook

Weekend Weather Outlook

Sunset over a bay (Willem Bouwmeester, Pixabay)

Time to "Spring Forward" As Daylight Saving Approaches

Weekly Drought Map for March 5, 2026

Drought Worsens Nationwide Despite Multiple Disturbances

A tornado on the ground in Hildreth, Neb., on June 14, 2014 (NOAA Photo Library/Ken Engquist).

Tornadoes and Road Safety -- Do's and Don't's

A baby wearing many items of winter clothing: headband, cap, fur-lined coat, wool neckscarf and sweater. (Courtesy of Wikimedia Commons. Author: Andrew Vargas from Clovis, United States)

How to Dress Your Children for Spring Weather

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide