National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Portola - Gulling Street (CQ236)

Lat: 39.81336°NLon: 120.47069°WElev: 4895.0ft.

NA

31°F

-1°C

Humidity 89%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 26 Dec 06:00 AM PST
Extended Forecast for

Portola CA

Winter Storm Warning December 26, 07:46am until December 26, 04:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning December 26, 07:46am until December 26, 04:00pm

    NOW until 4:00pm Fri

    Winter Storm Warning

  • Today

    High: 38 °F

    Snow and
    Areas
    Freezing Fog

  • Tonight

    Tonight: Snow likely, mainly before 7pm. Areas of fog after 10pm. Areas of freezing fog before 10pm. Otherwise, mostly cloudy, with a low around 24. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Snow Likely
    and Areas
    Freezing Fog

  • Saturday

    Saturday: A 30 percent chance of snow before 10am. Patchy fog between 8am and 10am. Areas of freezing fog between 7am and 8am. Otherwise, mostly sunny, with a high near 39. Calm wind becoming northwest around 5 mph. Little or no snow accumulation expected.

    High: 39 °F

    Chance Snow
    and Areas
    Freezing Fog
    then Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 14. Calm wind becoming northeast around 5 mph.

    Low: 14 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 37. East wind around 5 mph.

    High: 37 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 12. East wind around 5 mph.

    Low: 12 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 15.

    Low: 15 °F

    Clear

Detailed Forecast

Today
Snow. Areas of freezing fog before 10am. High near 38. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. Total daytime snow accumulation of around an inch possible.
Tonight
Snow likely, mainly before 7pm. Areas of fog after 10pm. Areas of freezing fog before 10pm. Otherwise, mostly cloudy, with a low around 24. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
A 30 percent chance of snow before 10am. Patchy fog between 8am and 10am. Areas of freezing fog between 7am and 8am. Otherwise, mostly sunny, with a high near 39. Calm wind becoming northwest around 5 mph. Little or no snow accumulation expected.
Saturday Night
Partly cloudy, with a low around 14. Calm wind becoming northeast around 5 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 37. East wind around 5 mph.
Sunday Night
Mostly clear, with a low around 12. East wind around 5 mph.
Monday
Sunny, with a high near 40.
Monday Night
Clear, with a low around 15.
Tuesday
Sunny, with a high near 44.
Tuesday Night
Mostly clear, with a low around 18.
Wednesday
Sunny, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 26.
New Year's Day
A chance of rain and snow. Snow level 5100 feet rising to 5900 feet in the afternoon. Partly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portola CA
 39.81°N 120.46°W (Elev. 4984 ft)
Last Update:
1:15 am PST Dec 26, 2025
Forecast Valid:
7am PST Dec 26, 2025-6pm PST Jan 1, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation