Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Current conditions at

STEHEKIN-AIRSTRIP (STRW1)

Lat: 48.34694°NLon: 120.72028°WElev: 1230.0ft.

NA

32°F

0°C

Humidity 99%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 24 Dec 10:01 AM PST
Extended Forecast for

6 Miles NNE Washington Pass WA

Winter Weather Advisory December 24, 11:11am until December 24, 04:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 24, 11:11am until December 24, 04:00pm

    NOW until 4:00pm Wed

    Winter Weather Advisory

  • Today

    High: 33 °F

    Rain/Snow

  • Tonight

    Tonight: A 30 percent chance of snow before 7pm.  Partly cloudy, with a low around 19. West wind 5 to 7 mph becoming calm  after midnight.  New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Chance Snow
    then Mostly
    Clear

  • Christmas Day

    Christmas Day: Snow, mainly after 10am.  High near 31. Light and variable wind.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 31 °F

    Snow

  • Thursday Night

    Thursday Night: Snow, mainly before 10pm.  Low around 24. West wind 3 to 5 mph.  Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    Low: 24 °F

    Snow then
    Snow Likely

  • Friday

    Friday: Snow, mainly before 4pm.  High near 30. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 30 °F

    Snow

  • Friday Night

    Friday Night: A 50 percent chance of snow, mainly before 10pm.  Mostly cloudy, with a low around 15. New snow accumulation of less than a half inch possible.

    Low: 15 °F

    Chance Snow
    then Slight
    Chance Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 10 percent chance of snow after 4am.  Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Today
Snow before 1pm, then rain likely, possibly mixed with snow. High near 33. East wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 2 to 4 inches possible.
Tonight
A 30 percent chance of snow before 7pm. Partly cloudy, with a low around 19. West wind 5 to 7 mph becoming calm after midnight. New snow accumulation of less than a half inch possible.
Christmas Day
Snow, mainly after 10am. High near 31. Light and variable wind. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Thursday Night
Snow, mainly before 10pm. Low around 24. West wind 3 to 5 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Friday
Snow, mainly before 4pm. High near 30. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Friday Night
A 50 percent chance of snow, mainly before 10pm. Mostly cloudy, with a low around 15. New snow accumulation of less than a half inch possible.
Saturday
Mostly sunny, with a high near 26.
Saturday Night
A 10 percent chance of snow after 4am. Mostly cloudy, with a low around 16.
Sunday
A 20 percent chance of snow before 10am. Partly sunny, with a high near 32.
Sunday Night
Mostly cloudy, with a low around 22.
Monday
Mostly cloudy, with a high near 37.
Monday Night
Mostly cloudy, with a low around 24.
Tuesday
Partly sunny, with a high near 38.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNE Washington Pass WA
 48.6°N 120.57°W (Elev. 4173 ft)
10:02 am PST Dec 24, 2025
11am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database