Hourly Weather Forecast - Acton, Ontario, CA

12 AM
-3°F
10%
9mph
WNW
Very Cold
Humidity
72%
Feels like
-18°F
Dew Point
-9°F
1 AM
-3°F
10%
9mph
WNW
Very Cold
Humidity
73%
Feels like
-18°F
Dew Point
-9°F
2 AM
-3°F
10%
8mph
NW
Very Cold
Humidity
74%
Feels like
-18°F
Dew Point
-9°F
3 AM
-4°F
10%
8mph
NW
Very Cold
Humidity
77%
Feels like
-19°F
Dew Point
-9°F
4 AM
-4°F
10%
8mph
NW
Very Cold
Humidity
78%
Feels like
-19°F
Dew Point
-9°F
5 AM
-4°F
10%
8mph
NW
Very Cold
Humidity
78%
Feels like
-19°F
Dew Point
-9°F

Snow Forecast through Sunday

Unrelenting Storm Track Brings Snow to Great Lakes & Eastern U.S.

Two main areas of low pressure will produce snow in the Upper Midwest, Great Lakes and Eastern U.S.

Monday's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

Vehicle driving in wintry conditions

Prepare Your Car for Cold Weather

(Image provided by NOAA)

Polar Vortex: What Is It?

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

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