National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 >

Hazardous Weather Conditions

Current conditions at

STEHEKIN-AIRSTRIP (STRW1)

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

NA

32°F

0°C

Humidity 98%
Wind Speed NNE 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 25 Dec 10:01 AM PST
Extended Forecast for

Trinity WA

Winter Weather Advisory December 26, 04:00am until December 26, 10:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Christmas Day

    Christmas Day: Snow before 11am, then rain and snow. High near 33. Southeast wind 3 to 5 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 3 inches possible.

    High: 33 °F

    Rain/Snow

  • Tonight

    Tonight: Rain and snow likely before 1am, then a chance of snow after 4am. Mostly cloudy, with a low around 27. Light southeast wind. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 27 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Friday

    Friday: Snow, mainly after 7am. The snow could be heavy at times. High near 32. South wind 3 to 8 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 32 °F

    Heavy Snow

  • Friday Night

    Friday Night: Snow, mainly before 10pm. Low around 19. West wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 19 °F

    Snow then
    Chance Snow

  • Saturday

    Saturday: A 20 percent chance of snow before 10am. Mostly sunny, with a high near 31. West wind around 7 mph.

    High: 31 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy

Detailed Forecast

Christmas Day
Snow before 11am, then rain and snow. High near 33. Southeast wind 3 to 5 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Rain and snow likely before 1am, then a chance of snow after 4am. Mostly cloudy, with a low around 27. Light southeast wind. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Friday
Snow, mainly after 7am. The snow could be heavy at times. High near 32. South wind 3 to 8 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Friday Night
Snow, mainly before 10pm. Low around 19. West wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Saturday
A 20 percent chance of snow before 10am. Mostly sunny, with a high near 31. West wind around 7 mph.
Saturday Night
Mostly cloudy, with a low around 15.
Sunday
Mostly sunny, with a high near 36.
Sunday Night
Mostly cloudy, with a low around 21.
Monday
Mostly cloudy, with a high near 39.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
Mostly cloudy, with a high near 41.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 41. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Trinity WA
 48.08°N 120.84°W (Elev. 3346 ft)
Last Update:
9:21 am PST Dec 25, 2025
Forecast Valid:
10am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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