Hourly Weather Forecast - St Marys, Ontario, CA

4 PM
24°F
10%
12mph
NNW
Mostly Cloudy
Humidity
68%
Feels like
13°F
Dew Point
15°F
5 PM
23°F
10%
11mph
NNW
Mostly Cloudy
Humidity
69%
Feels like
12°F
Dew Point
15°F
6 PM
22°F
10%
10mph
N
Mostly Cloudy
Humidity
72%
Feels like
11°F
Dew Point
14°F
6:12 PM
7 PM
21°F
10%
10mph
N
Mostly Cloudy
Humidity
75%
Feels like
10°F
Dew Point
14°F
8 PM
20°F
30%
9mph
N
30% Chance of Flurries
Humidity
76%
Feels like
10°F
Dew Point
14°F
9 PM
20°F
40%
9mph
N
40% Chance of Heavy Snow
Humidity
78%
Feels like
9°F
Dew Point
14°F
10 PM
19°F
30%
9mph
N
30% Chance of Snow
Humidity
79%
Feels like
9°F
Dew Point
14°F
11 PM
19°F
30%
8mph
NNE
30 % Chance of Heavy Snow
Humidity
79%
Feels like
9°F
Dew Point
14°F

Sunday's Weather Outlook

Sunday's Weather Outlook

The first day of March will feature wintry weather in the Lower Midwest and parts of the Northeast.

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

Flooding Can Happen in the Winter Too!

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