Hourly Weather Forecast - Hamilton, Ontario, CA

12 AM
42°F
70%
9mph
SW
70% Chance of Light Rain
Humidity
95%
Feels like
37°F
Dew Point
41°F
1 AM
42°F
80%
8mph
WSW
80% Chance of Light Rain
Humidity
95%
Feels like
37°F
Dew Point
41°F
2 AM
43°F
70%
9mph
WSW
70% Chance of Light Rain
Humidity
95%
Feels like
37°F
Dew Point
41°F
3 AM
43°F
70%
9mph
WSW
70% Chance Rain Showers
Humidity
93%
Feels like
38°F
Dew Point
41°F
4 AM
43°F
60%
9mph
WSW
60% Chance Rain Showers
Humidity
93%
Feels like
38°F
Dew Point
41°F
5 AM
43°F
60%
10mph
WSW
60% Chance Rain Showers
Humidity
93%
Feels like
38°F
Dew Point
42°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

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

NOAA, NCDC

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Weekend Weather Outlook

Weekend 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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