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

HELL HOLE (HLLC1)

Lat: 39.06971°NLon: 120.41989°WElev: 5240.0ft.

NA

55°F

13°C

Humidity 39%
Wind Speed E 9 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 09 Dec 07:09 PM PST
Extended Forecast for

Donner Summit CA

  • Tonight

    Tonight: Clear, with a low around 36. Calm wind becoming east northeast around 6 mph in the evening.

    Low: 36 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 57. Light and variable wind.

    High: 57 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 35. Light east wind.

    Low: 35 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 57. Calm wind.

    High: 57 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 32. East wind 3 to 6 mph.

    Low: 32 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 36. Calm wind becoming east northeast around 6 mph in the evening.
Wednesday
Sunny, with a high near 57. Light and variable wind.
Wednesday Night
Clear, with a low around 35. Light east wind.
Thursday
Sunny, with a high near 57. Calm wind.
Thursday Night
Clear, with a low around 32. East wind 3 to 6 mph.
Friday
Sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 34.
Saturday
Sunny, with a high near 57.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 33.
Monday
A slight chance of rain and snow showers. Mostly sunny, with a high near 49.
Monday Night
A chance of showers. Mostly cloudy, with a low around 32.
Tuesday
A chance of rain and snow showers. Partly sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
Donner Summit CA
 39.33°N 120.37°W (Elev. 6965 ft)
1:21 pm PST Dec 9, 2025
8pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database