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 >

Current conditions at

NCSB (NCSW1)

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

NA

27°F

-3°C

Humidity 100%
Wind Speed SE 1 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 25 Dec 08:06 AM PST
Extended Forecast for

7 Miles NW Winthrop WA

  • Christmas Day

    Christmas Day: Snow. High near 29. Calm wind. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.

    High: 29 °F

    Snow

  • Tonight

    Tonight: Snow likely, mainly before 7pm. Mostly cloudy, with a low around 25. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Snow Likely
    then Slight
    Chance Snow

  • Friday

    Friday: Snow, mainly after 7am. High near 26. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 26 °F

    Snow

  • Friday Night

    Friday Night: Snow likely, mainly before 10pm. Mostly cloudy, with a low around 16. Northwest wind around 9 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 16 °F

    Snow Likely
    then Slight
    Chance Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 23. Northwest wind 3 to 6 mph.

    High: 23 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

  • Sunday Night

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

    Low: 20 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 29.

    High: 29 °F

    Mostly Cloudy

Detailed Forecast

Christmas Day
Snow. High near 29. Calm wind. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow likely, mainly before 7pm. Mostly cloudy, with a low around 25. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Snow, mainly after 7am. High near 26. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 16. Northwest wind around 9 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday
Mostly sunny, with a high near 23. Northwest wind 3 to 6 mph.
Saturday Night
Mostly cloudy, with a low around 14.
Sunday
Partly sunny, with a high near 27.
Sunday Night
Mostly cloudy, with a low around 20.
Monday
Mostly cloudy, with a high near 29.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
Mostly cloudy, with a high near 33.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 33. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NW Winthrop WA
 48.55°N 120.27°W (Elev. 3809 ft)
Last Update:
2:17 am PST Dec 25, 2025
Forecast Valid:
8am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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