Hourly Weather Forecast - St. Marys, Ontario, CA

12 AM
19°F
0%
6mph
ESE
Mostly Clear
Humidity
64%
Feels like
10°F
Dew Point
9°F
1 AM
19°F
0%
6mph
ESE
Mostly Clear
Humidity
66%
Feels like
10°F
Dew Point
9°F
2 AM
19°F
0%
6mph
ESE
Mostly Clear
Humidity
68%
Feels like
11°F
Dew Point
10°F
3 AM
19°F
0%
6mph
ESE
Partly Cloudy
Humidity
71%
Feels like
11°F
Dew Point
11°F
4 AM
19°F
0%
6mph
ESE
Partly Cloudy
Humidity
74%
Feels like
11°F
Dew Point
12°F
5 AM
19°F
0%
6mph
ESE
Mostly Cloudy
Humidity
78%
Feels like
11°F
Dew Point
13°F
6 AM
19°F
0%
6mph
ESE
Cloudy
Humidity
83%
Feels like
11°F
Dew Point
15°F
6:57 AM
7 AM
20°F
0%
6mph
ESE
Cloudy
Humidity
85%
Feels like
12°F
Dew Point
17°F
8 AM
23°F
10%
7mph
ESE
Cloudy
Humidity
83%
Feels like
15°F
Dew Point
19°F
9 AM
26°F
10%
7mph
ESE
Cloudy
Humidity
80%
Feels like
19°F
Dew Point
21°F
10 AM
30°F
10%
8mph
ESE
Cloudy
Humidity
77%
Feels like
22°F
Dew Point
24°F
11 AM
33°F
10%
8mph
ESE
Cloudy
Humidity
76%
Feels like
26°F
Dew Point
26°F
12 PM
35°F
10%
9mph
ESE
Mostly Cloudy
Humidity
74%
Feels like
28°F
Dew Point
28°F
1 PM
37°F
10%
9mph
ESE
Mostly Cloudy
Humidity
73%
Feels like
30°F
Dew Point
29°F
2 PM
37°F
10%
8mph
ESE
Mostly Cloudy
Humidity
74%
Feels like
31°F
Dew Point
30°F
3 PM
38°F
10%
8mph
ESE
Mostly Cloudy
Humidity
75%
Feels like
32°F
Dew Point
30°F
4 PM
37°F
10%
7mph
ESE
Cloudy
Humidity
78%
Feels like
32°F
Dew Point
31°F
5 PM
36°F
10%
6mph
ESE
Cloudy
Humidity
81%
Feels like
32°F
Dew Point
31°F
6 PM
35°F
10%
5mph
ESE
Cloudy
Humidity
86%
Feels like
31°F
Dew Point
31°F
6:15 PM
7 PM
34°F
10%
4mph
ESE
Cloudy
Humidity
89%
Feels like
31°F
Dew Point
31°F
8 PM
33°F
30%
3mph
ESE
30% Chance Frozen Mix
Humidity
91%
Feels like
30°F
Dew Point
31°F
9 PM
32°F
30%
3mph
ESE
30% Chance Frozen Mix
Humidity
91%
Feels like
32°F
Dew Point
30°F
10 PM
32°F
30%
2mph
E
30% Chance Frozen Mix
Humidity
91%
Feels like
32°F
Dew Point
29°F
11 PM
31°F
30%
2mph
E
30% Chance Freezing Rain
Humidity
91%
Feels like
31°F
Dew Point
29°F

Snow and Ice Accumulations through Tuesday

Wintry Disturbance Hits Northeastern U.S.

A wintry disturbance will continue northeastward, buffeting the northeastern U.S. with light snow, freezing rain, and plain rain through Tuesday night.

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for February 26, 2026

Widespread Drought Degradation For South, Southeast; Mixed Results Elsewhere

Debris flies through the air as howling winds accompanied by a line of storms approach the old Tarrant County Courthouse in downtown Fort Worth, Texas, on March 2, 2023. (Tom Fox/The Dallas Morning News via AP)

Lightning Season Rapidly Approaching: Best Safety Practices

Rocky Mountain National Park at day in December. (NPS Natural Resources/Wikimedia Commons)

Snowmelt and Flooding

U.S. Route 52 near St. Donatus between Bellevue and Dubuque, Iowa. (Tony Webster from Portland, Oregon)

Winter Weather Driving Safety Tips

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide