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

Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Current conditions at

NCSB (NCSW1)

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

NA

37°F

3°C

Humidity 95%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 10 Dec 12:06 PM PST
Extended Forecast for

17 Miles SW Twisp WA

  • This Afternoon

    This Afternoon: Rain and snow. The rain could be heavy at times. High near 32. Windy, with a west wind around 26 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 3 to 5 inches possible.

    High: 32 °F

    Rain/Snow and
    Windy

  • Tonight

    Tonight: Snow, possibly mixed with rain, becoming all snow after 1am. The rain and snow could be heavy at times. Low around 23. Windy, with a west wind 24 to 26 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: 23 °F

    Rain/Snow and
    Windy

  • Thursday

    Thursday: Snow likely, mainly before 10am. Partly sunny, with a temperature falling to around 21 by 4pm. Breezy, with a west wind 16 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 27 °F⇓

    Breezy. Snow
    Likely then
    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 22. Northwest wind around 14 mph. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Chance Snow

  • Friday

    Friday: A 50 percent chance of snow. Mostly cloudy, with a high near 28. West wind around 14 mph. New snow accumulation of less than a half inch possible.

    High: 28 °F

    Chance Snow

  • Friday Night

    Friday Night: A 40 percent chance of snow, mainly before 10pm. Mostly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow

  • Saturday

    Saturday: A 20 percent chance of snow. Partly sunny, with a high near 26.

    High: 26 °F

    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow, mainly after 10pm. Mostly cloudy, with a low around 23.

    Low: 23 °F

    Chance Snow

  • Sunday

    Sunday: Snow likely, mainly after 10am. Mostly cloudy, with a high near 26. Chance of precipitation is 60%.

    High: 26 °F

    Snow Likely

Detailed Forecast

This Afternoon
Rain and snow. The rain could be heavy at times. High near 32. Windy, with a west wind around 26 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 3 to 5 inches possible.
Tonight
Snow, possibly mixed with rain, becoming all snow after 1am. The rain and snow could be heavy at times. Low around 23. Windy, with a west wind 24 to 26 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Thursday
Snow likely, mainly before 10am. Partly sunny, with a temperature falling to around 21 by 4pm. Breezy, with a west wind 16 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 22. Northwest wind around 14 mph. New snow accumulation of less than a half inch possible.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 28. West wind around 14 mph. New snow accumulation of less than a half inch possible.
Friday Night
A 40 percent chance of snow, mainly before 10pm. Mostly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.
Saturday
A 20 percent chance of snow. Partly sunny, with a high near 26.
Saturday Night
A 40 percent chance of snow, mainly after 10pm. Mostly cloudy, with a low around 23.
Sunday
Snow likely, mainly after 10am. Mostly cloudy, with a high near 26. Chance of precipitation is 60%.
Sunday Night
Snow likely, mainly after 4am. Mostly cloudy, with a low around 24. Chance of precipitation is 60%.
Monday
Snow. The snow could be heavy at times. High near 26. Chance of precipitation is 80%.
Monday Night
Snow. The snow could be heavy at times. Low around 22. Breezy. Chance of precipitation is 90%.
Tuesday
Snow likely. Mostly cloudy, with a high near 23. Breezy. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SW Twisp WA
 48.18°N 120.36°W (Elev. 7339 ft)
Last Update:
9:59 am PST Dec 10, 2025
Forecast Valid:
1pm PST Dec 10, 2025-6pm PST Dec 16, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation