Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

Portola - Gulling Street (CQ236)

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

NA

29°F

-2°C

Humidity 91%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 10 Dec 02:00 AM PST
Extended Forecast for

Portola CA

  • Overnight

    Overnight: Clear, with a low around 32. Calm wind.

    Low: 32 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 64. Calm wind.

    High: 64 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 31. Calm wind.

    Low: 31 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 62. Calm wind.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 26. Calm wind.

    Low: 26 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 61. Calm wind.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 32. Calm wind.
Wednesday
Sunny, with a high near 64. Calm wind.
Wednesday Night
Clear, with a low around 31. Calm wind.
Thursday
Sunny, with a high near 62. Calm wind.
Thursday Night
Clear, with a low around 26. Calm wind.
Friday
Sunny, with a high near 61. Calm wind.
Friday Night
Mostly clear, with a low around 27.
Saturday
Sunny, with a high near 62.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 30.
Monday
A slight chance of rain. Snow level 6600 feet rising to 8300 feet in the afternoon. Partly sunny, with a high near 58.
Monday Night
A chance of rain. Mostly cloudy, with a low around 35.
Tuesday
A chance of rain. Snow level 7900 feet. Partly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Portola CA
 39.81°N 120.46°W (Elev. 4984 ft)
3:30 am PST Dec 10, 2025
3am PST Dec 10, 2025-6pm PST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database