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

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. 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 NW 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 24 Dec 01:01 AM PST
Extended Forecast for

Trinity WA

  • Overnight

    Overnight: Snow likely before 3am, then snow likely, possibly mixed with rain between 3am and 4am, then snow after 4am. Steady temperature around 30. Southeast wind around 7 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 30 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow before noon, then rain between noon and 5pm, then a chance of rain and snow after 5pm. High near 36. Southeast wind 7 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    High: 36 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 22. South wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Chance
    Rain/Snow
    then Partly
    Cloudy

  • Christmas Day

    Christmas Day: Rain and snow before 11am, then snow between 11am and noon, then rain and snow after noon. High near 33. East wind 3 to 5 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 33 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: Rain and snow, mainly before 10pm. Low around 28. Light west wind. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 28 °F

    Rain/Snow

  • Friday

    Friday: Snow. High near 32. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    High: 32 °F

    Snow

  • Friday Night

    Friday Night: Snow likely, mainly before 10pm. Mostly cloudy, with a low around 20. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 20 °F

    Snow Likely
    then Slight
    Chance Snow

  • Saturday

    Saturday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Snow likely before 3am, then snow likely, possibly mixed with rain between 3am and 4am, then snow after 4am. Steady temperature around 30. Southeast wind around 7 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 3 inches possible.
Wednesday
Rain and snow before noon, then rain between noon and 5pm, then a chance of rain and snow after 5pm. High near 36. Southeast wind 7 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
A chance of rain and snow before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 22. South wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Christmas Day
Rain and snow before 11am, then snow between 11am and noon, then rain and snow after noon. High near 33. East wind 3 to 5 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Thursday Night
Rain and snow, mainly before 10pm. Low around 28. Light west wind. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday
Snow. High near 32. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Friday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 20. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday
Partly sunny, with a high near 32.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
Partly sunny, with a high near 37.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Partly sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 43. Chance of precipitation is 30%.
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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:
1:12 am PST Dec 24, 2025
Forecast Valid:
1am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation