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

Mount Shasta (KMHS)

Lat: 41.31494°NLon: 122.31702°WElev: 3540.0ft.

Clear

35°F

2°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.3 in (1026.08 mb)
Dewpoint 33°F (1°C)
Visibility 9.00 mi
Last update 10 Dec 02:56 AM PST
Extended Forecast for

Mount Shasta CA

  • Overnight

    Overnight: Patchy fog.  Otherwise, partly cloudy, with a steady temperature around 40. Calm wind.

    Low: 40 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am.  Otherwise, sunny, with a high near 63. Calm wind becoming north northwest 5 to 8 mph in the afternoon.

    High: 63 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39. West northwest wind 3 to 5 mph.

    Low: 39 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 62. Light northwest wind.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 37. Light north northwest wind.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, partly cloudy, with a steady temperature around 40. Calm wind.
Wednesday
Patchy fog before 9am. Otherwise, sunny, with a high near 63. Calm wind becoming north northwest 5 to 8 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 39. West northwest wind 3 to 5 mph.
Thursday
Sunny, with a high near 62. Light northwest wind.
Thursday Night
Mostly clear, with a low around 37. Light north northwest wind.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 38.
Saturday
Sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 57.
Sunday Night
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 38.
Monday
Rain likely. Patchy fog. Otherwise, mostly cloudy, with a high near 52.
Monday Night
Rain likely. Mostly cloudy, with a low around 38.
Tuesday
A chance of rain. Mostly cloudy, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Shasta CA
 41.3°N 122.32°W (Elev. 3415 ft)
3:41 am PST Dec 10, 2025
3am 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