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

47°F

8°C

Humidity 80%
Wind Speed N 4 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Wind Chill45°F (7°C)
Last update 10 Dec 12:32 AM PST
Extended Forecast for

9 Miles S Dunsmuir CA

  • Overnight

    Overnight: Widespread haze. Partly cloudy, with a low around 41. North northeast wind around 8 mph.

    Low: 41 °F

    Haze

  • Wednesday

    Wednesday: Widespread haze between 8am and 9am. Sunny, with a high near 54. North northeast wind 5 to 7 mph becoming calm  in the morning.

    High: 54 °F

    Haze then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41. North wind 7 to 9 mph.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 54. North wind 5 to 8 mph becoming calm  in the afternoon.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 41. North wind 8 to 10 mph.

    Low: 41 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Overnight
Widespread haze. Partly cloudy, with a low around 41. North northeast wind around 8 mph.
Wednesday
Widespread haze between 8am and 9am. Sunny, with a high near 54. North northeast wind 5 to 7 mph becoming calm in the morning.
Wednesday Night
Mostly clear, with a low around 41. North wind 7 to 9 mph.
Thursday
Sunny, with a high near 54. North wind 5 to 8 mph becoming calm in the afternoon.
Thursday Night
Mostly clear, with a low around 41. North wind 8 to 10 mph.
Friday
Sunny, with a high near 56.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Sunny, with a high near 53.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Areas of frost before 8am. Otherwise, partly sunny, with a high near 47.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 38.
Monday
A chance of showers. Mostly cloudy, with a high near 43.
Monday Night
Showers likely. Mostly cloudy, with a low around 39.
Tuesday
A chance of showers. Partly sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles S Dunsmuir CA
 41.11°N 122.27°W (Elev. 4551 ft)
1:21 pm PST Dec 9, 2025
12am PST Dec 10, 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