Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

Mount Shasta (KMHS)

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

Clear

48°F

9°C

Humidity 70%
Wind Speed NA 3 MPH
Barometer 30.35 in (1027.77 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 08 Dec 10:56 AM PST
Extended Forecast for

Mt Shasta CA

  • Today

    Today: Mostly sunny, with a high near 54. Calm wind.

    High: 54 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 58. Calm wind.

    High: 58 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog before 10pm, then patchy fog after 4am.  Otherwise, partly cloudy, with a low around 40. Light north northwest wind.

    Low: 40 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 60. Calm wind.

    High: 60 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 54. Calm wind.
Tonight
Partly cloudy, with a low around 38. Calm wind.
Tuesday
Mostly sunny, with a high near 58. Calm wind.
Tuesday Night
Patchy fog before 10pm, then patchy fog after 4am. Otherwise, partly cloudy, with a low around 40. Light north northwest wind.
Wednesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 60. Calm wind.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
Sunny, with a high near 60.
Thursday Night
Mostly clear, with a low around 39.
Friday
Sunny, with a high near 61.
Friday Night
Mostly clear, with a low around 39.
Saturday
Sunny, with a high near 59.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Partly sunny, with a high near 53.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Mt Shasta CA
 41.33°N 122.3°W (Elev. 3855 ft)
11:01 am PST Dec 8, 2025
11am PST Dec 8, 2025-6pm PST Dec 14, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database