Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Mount Shasta (KMHS)

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

Clear

40°F

4°C

Humidity 89%
Wind Speed N 0 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 37°F (3°C)
Visibility 7.00 mi
Last update 08 Dec 06:56 PM PST
Extended Forecast for

Mount Shasta CA

  • Tonight

    Tonight: Patchy fog.  Otherwise, partly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 9am.  Otherwise, sunny, with a high near 60. Light northwest wind.

    High: 60 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 10pm.  Otherwise, partly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am.  Otherwise, sunny, with a high near 64. Calm wind.

    High: 64 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 37.

    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 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog. Otherwise, partly cloudy, with a low around 37. Calm wind.
Tuesday
Areas of fog before 9am. Otherwise, sunny, with a high near 60. Light northwest wind.
Tuesday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 39. Calm wind.
Wednesday
Patchy fog before 9am. Otherwise, sunny, with a high near 64. Calm wind.
Wednesday Night
Mostly clear, with a low around 38. Calm wind.
Thursday
Sunny, with a high near 62.
Thursday Night
Mostly clear, with a low around 37.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Patchy fog. Otherwise, partly sunny, with a high near 54.
Sunday Night
A slight chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 37.
Monday
A chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Shasta CA
 41.3°N 122.32°W (Elev. 3415 ft)
3:41 pm PST Dec 8, 2025
7pm PST Dec 8, 2025-6pm PST Dec 15, 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