Hourly Weather Forecast - St Marys, Ontario, CA

12 AM
7°F
0%
3mph
E
Mostly Clear
Humidity
73%
Feels like
1°F
Dew Point
0°F
1 AM
7°F
0%
3mph
E
Mostly Clear
Humidity
74%
Feels like
0°F
Dew Point
0°F
2 AM
6°F
0%
4mph
E
Mostly Clear
Humidity
75%
Feels like
-1°F
Dew Point
0°F
3 AM
6°F
0%
4mph
E
Mostly Clear
Humidity
75%
Feels like
-2°F
Dew Point
0°F
4 AM
6°F
0%
4mph
E
Partly Cloudy
Humidity
75%
Feels like
-2°F
Dew Point
0°F
5 AM
6°F
0%
4mph
ESE
Partly Cloudy
Humidity
75%
Feels like
-3°F
Dew Point
-1°F
6 AM
6°F
0%
4mph
ESE
Partly Cloudy
Humidity
75%
Feels like
-3°F
Dew Point
-1°F
6:59 AM
7 AM
7°F
0%
5mph
ESE
Mostly Sunny
Humidity
74%
Feels like
-3°F
Dew Point
0°F
8 AM
9°F
0%
6mph
ESE
Sunny
Humidity
70%
Feels like
-1°F
Dew Point
1°F
9 AM
13°F
0%
6mph
ESE
Sunny
Humidity
64%
Feels like
3°F
Dew Point
3°F
10 AM
16°F
0%
7mph
SE
Sunny
Humidity
61%
Feels like
7°F
Dew Point
5°F
11 AM
19°F
0%
8mph
SE
Sunny
Humidity
58%
Feels like
9°F
Dew Point
7°F
12 PM
22°F
0%
9mph
SE
Sunny
Humidity
55%
Feels like
12°F
Dew Point
8°F
1 PM
24°F
0%
9mph
SE
Sunny
Humidity
52%
Feels like
15°F
Dew Point
10°F
2 PM
26°F
0%
9mph
SE
Sunny
Humidity
51%
Feels like
17°F
Dew Point
11°F
3 PM
28°F
0%
9mph
SE
Sunny
Humidity
50%
Feels like
19°F
Dew Point
11°F
4 PM
28°F
0%
9mph
SSE
Sunny
Humidity
50%
Feels like
19°F
Dew Point
12°F
5 PM
26°F
0%
8mph
SE
Sunny
Humidity
54%
Feels like
17°F
Dew Point
11°F
6 PM
23°F
0%
7mph
SE
Sunny
Humidity
59%
Feels like
15°F
Dew Point
11°F
6:14 PM
7 PM
21°F
0%
7mph
SE
Clear
Humidity
63%
Feels like
12°F
Dew Point
10°F
8 PM
20°F
0%
7mph
SE
Clear
Humidity
64%
Feels like
11°F
Dew Point
10°F
9 PM
19°F
0%
7mph
SE
Clear
Humidity
64%
Feels like
10°F
Dew Point
9°F
10 PM
19°F
0%
6mph
SE
Clear
Humidity
64%
Feels like
10°F
Dew Point
9°F
11 PM
19°F
0%
6mph
SE
Clear
Humidity
63%
Feels like
10°F
Dew Point
9°F

Snow and Ice Accumulations through Tuesday AM

Wintry Disturbance Bisects U.S. Mid-Latitudes

A wintry disturbance will bring icing and light snow from the central Plains tonight through the Northeast on Tuesday.

Today's Weather Outlook

Monday'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

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