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

Auburn Municipal Airport (KAUN)

Lat: 38.95535°NLon: 121.08636°WElev: 1486.0ft.

Fog

41°F

5°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.3 in (1026.08 mb)
Dewpoint 41°F (5°C)
Visibility -0.25 mi
Last update 08 Dec 05:55 PM PST
Extended Forecast for

3 Miles SW Alta Sierra CA

  • Tonight

    Tonight: Widespread haze. Patchy fog between 7pm and 11pm.  Otherwise, partly cloudy, with a steady temperature around 43. Calm wind.

    Low: 43 °F

    Patchy Fog
    then Haze

  • Tuesday

    Tuesday: Widespread haze before noon. Sunny, with a high near 54. Light and variable wind.

    High: 54 °F

    Haze then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 59. Light and variable wind.

    High: 59 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44. Calm wind.

    Low: 44 °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 43.

    Low: 43 °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 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Widespread haze. Patchy fog between 7pm and 11pm. Otherwise, partly cloudy, with a steady temperature around 43. Calm wind.
Tuesday
Widespread haze before noon. Sunny, with a high near 54. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 42. Calm wind.
Wednesday
Sunny, with a high near 59. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 44. Calm wind.
Thursday
Sunny, with a high near 62.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 61.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Mostly sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 43.
Monday
A slight chance of showers. Partly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Alta Sierra CA
 39.09°N 121.1°W (Elev. 1601 ft)
1:20 pm PST Dec 8, 2025
6pm 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