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

NCSB (NCSW1)

Lat: 48.42528°NLon: 120.14194°WElev: 1697.0ft.

NA

31°F

-1°C

Humidity 100%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 25 Dec 05:06 PM PST
Extended Forecast for

Twisp WA

  • Tonight

    Tonight: A chance of rain and snow, mainly before 7pm. Patchy freezing fog. Mostly cloudy, with a low around 24. Calm wind. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 24 °F

    Chance
    Rain/Snow and
    Patchy
    Freezing Fog

  • Friday

    Friday: Snow likely before noon, then snow likely, possibly mixed with rain between noon and 2pm, then snow likely after 2pm. Patchy freezing fog before 9am. Partly sunny, with a high near 33. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 33 °F

    Snow Likely
    and Patchy
    Freezing Fog
    then
    Rain/Snow
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of snow before 10pm. Partly cloudy, with a low around 15. Northwest wind 3 to 6 mph. New snow accumulation of less than a half inch possible.

    Low: 15 °F

    Chance Snow
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 24. Northwest wind 3 to 5 mph.

    High: 24 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 12. Calm wind.

    Low: 12 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 26.

    High: 26 °F

    Mostly Cloudy

  • Monday Night

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

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of rain and snow, mainly before 7pm. Patchy freezing fog. Mostly cloudy, with a low around 24. Calm wind. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday
Snow likely before noon, then snow likely, possibly mixed with rain between noon and 2pm, then snow likely after 2pm. Patchy freezing fog before 9am. Partly sunny, with a high near 33. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
A 50 percent chance of snow before 10pm. Partly cloudy, with a low around 15. Northwest wind 3 to 6 mph. New snow accumulation of less than a half inch possible.
Saturday
Sunny, with a high near 24. Northwest wind 3 to 5 mph.
Saturday Night
Mostly cloudy, with a low around 12. Calm wind.
Sunday
Mostly sunny, with a high near 26.
Sunday Night
Mostly cloudy, with a low around 17.
Monday
Mostly cloudy, with a high near 26.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
Mostly cloudy, with a high near 31.
Tuesday Night
Mostly cloudy, with a low around 24.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 31. Chance of precipitation is 30%.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
New Year's Day
A chance of rain and snow. Partly sunny, with a high near 32. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Twisp WA
 48.36°N 120.12°W (Elev. 1719 ft)
Last Update:
3:48 pm PST Dec 25, 2025
Forecast Valid:
6pm PST Dec 25, 2025-6pm PST Jan 1, 2026
 
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