Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Current conditions at

STONYFORD (SYWC1)

Lat: 39.35523°NLon: 122.65831°WElev: 1540.0ft.

NA

37°F

3°C

Humidity 91%
Wind Speed WSW 1 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 10 Dec 10:26 PM PST
Extended Forecast for

15 Miles S Alder Springs CA

  • Tonight

    Tonight: Clear, with a low around 49. West northwest wind around 9 mph.

    Low: 49 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 53. West northwest wind 5 to 8 mph becoming calm  in the afternoon.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 49. Northwest wind around 8 mph.

    Low: 49 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 55. Northwest wind 5 to 7 mph becoming calm  in the afternoon.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44. Northwest wind around 6 mph.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers after 4am.  Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 49. West northwest wind around 9 mph.
Thursday
Sunny, with a high near 53. West northwest wind 5 to 8 mph becoming calm in the afternoon.
Thursday Night
Clear, with a low around 49. Northwest wind around 8 mph.
Friday
Sunny, with a high near 55. Northwest wind 5 to 7 mph becoming calm in the afternoon.
Friday Night
Mostly clear, with a low around 44. Northwest wind around 6 mph.
Saturday
Sunny, with a high near 50.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
A slight chance of showers after 4am. Partly cloudy, with a low around 41.
Monday
A chance of showers, mainly after 10am. Partly sunny, with a high near 45.
Monday Night
Showers likely. Mostly cloudy, with a low around 42.
Tuesday
A chance of showers. Partly sunny, with a high near 45.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 39.
Wednesday
A chance of showers. Partly sunny, with a high near 45.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles S Alder Springs CA
 39.42°N 122.7°W (Elev. 4393 ft)
1:21 pm PST Dec 10, 2025
10pm PST Dec 10, 2025-6pm PST Dec 17, 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