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

SIMS (SMSC1)

Lat: 41.0713°NLon: 122.36993°WElev: 2537.0ft.

NA

53°F

12°C

Humidity 77%
Wind Speed WNW 0 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 09 Dec 04:32 PM PST
Extended Forecast for

5 Miles SW Dunsmuir CA

  • Tonight

    Tonight: Widespread haze between midnight and 5am. Mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear
    then Haze

  • Wednesday

    Wednesday: Widespread haze between 7am and 9am. Sunny, with a high near 61. Calm wind.

    High: 61 °F

    Haze then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 60. Calm wind.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Tonight
Widespread haze between midnight and 5am. Mostly clear, with a low around 46. Calm wind.
Wednesday
Widespread haze between 7am and 9am. Sunny, with a high near 61. Calm wind.
Wednesday Night
Mostly clear, with a low around 45. Calm wind.
Thursday
Sunny, with a high near 60. Calm wind.
Thursday Night
Mostly clear, with a low around 45. Calm wind.
Friday
Sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 54.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 43.
Monday
A chance of showers. Mostly cloudy, with a high near 50.
Monday Night
Showers likely. Mostly cloudy, with a low around 42.
Tuesday
A chance of showers. Partly sunny, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Dunsmuir CA
 41.17°N 122.32°W (Elev. 3146 ft)
1:21 pm PST Dec 9, 2025
5pm PST Dec 9, 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