Hourly Weather Forecast - York, Ontario, CA

12 AM
26°F
10%
11mph
N
Partly Cloudy
Humidity
66%
Feels like
16°F
Dew Point
16°F
1 AM
26°F
10%
10mph
N
Partly Cloudy
Humidity
67%
Feels like
16°F
Dew Point
16°F
2 AM
25°F
10%
10mph
NNE
Partly Cloudy
Humidity
68%
Feels like
15°F
Dew Point
16°F
3 AM
25°F
10%
9mph
NNE
Partly Cloudy
Humidity
70%
Feels like
16°F
Dew Point
17°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

White Christmas? What Are The Odds

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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