Hourly Weather Forecast - Blue Mountains, Ontario, CA

12 AM
21°F
30%
4mph
NE
30% Chance of Flurries
Humidity
72%
Feels like
16°F
Dew Point
14°F
1 AM
21°F
30%
3mph
NE
30% Chance of Flurries
Humidity
73%
Feels like
16°F
Dew Point
14°F
2 AM
21°F
20%
3mph
ENE
Cloudy
Humidity
74%
Feels like
16°F
Dew Point
14°F
3 AM
20°F
20%
4mph
E
Cloudy
Humidity
76%
Feels like
15°F
Dew Point
14°F

Rain And Snow Totals Through Monday

Atmospheric River Impacts Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California through Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

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Today's Weather Outlook

Today's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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