Hourly Weather Forecast - Portola, CA

8 PM
38°F
0%
0mph
E
Mostly Clear
Humidity
59%
Feels like
38°F
Dew Point
25°F
9 PM
36°F
0%
1mph
W
Mostly Clear
Humidity
61%
Feels like
36°F
Dew Point
24°F
10 PM
35°F
0%
2mph
W
Mostly Clear
Humidity
64%
Feels like
35°F
Dew Point
24°F
11 PM
34°F
0%
2mph
WSW
Mostly Clear
Humidity
65%
Feels like
34°F
Dew Point
24°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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