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

Alturas (KAAT)

Lat: 41.48362°NLon: 120.5615°WElev: 4383.0ft.

Clear

46°F

8°C

Humidity 61%
Wind Speed SW 3 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 09 Dec 07:20 PM PST
Extended Forecast for

Alturas CA

  • Tonight

    Tonight: Patchy fog after 2am.  Otherwise, partly cloudy, with a low around 31. Calm wind becoming west northwest around 5 mph.

    Low: 31 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 9am.  Otherwise, sunny, with a high near 63. Calm wind.

    High: 63 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 28. Calm wind.

    Low: 28 °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 25. Calm wind.

    Low: 25 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 31. Calm wind becoming west northwest around 5 mph.
Wednesday
Patchy fog before 9am. Otherwise, sunny, with a high near 63. Calm wind.
Wednesday Night
Mostly clear, with a low around 28. Calm wind.
Thursday
Sunny, with a high near 60. Calm wind.
Thursday Night
Mostly clear, with a low around 25. Calm wind.
Friday
Sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Sunny, with a high near 61.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
A slight chance of rain. Snow level 6500 feet rising to 7800 feet in the afternoon. Partly sunny, with a high near 55.
Monday Night
A chance of rain. Snow level 7800 feet lowering to 7300 feet after midnight . Mostly cloudy, with a low around 32.
Tuesday
A slight chance of rain. Snow level 6900 feet. Partly sunny, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
Alturas CA
 41.47°N 120.56°W (Elev. 4357 ft)
3:41 pm PST Dec 9, 2025
7pm 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