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

Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Current conditions at

NCSB (NCSW1)

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

NA

32°F

0°C

Humidity 94%
Wind Speed WNW 1 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 09 Dec 09:06 AM PST
Extended Forecast for

17 Miles SW Twisp WA

  • Today

    Today: Snow likely, mainly after 4pm. The snow could be heavy at times. Mostly cloudy, with a high near 25. Breezy, with a west wind 13 to 18 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%. Total daytime snow accumulation of 1 to 3 inches possible.

    High: 25 °F

    Breezy.
    Mostly Cloudy
    then Heavy
    Snow

  • Tonight

    Tonight: Snow. The snow could be heavy at times. Temperature rising to around 31 by 5am. West wind 8 to 17 mph. Chance of precipitation is 100%. New snow accumulation of 12 to 18 inches possible.

    Low: 22 °F⇑

    Heavy Snow

  • Wednesday

    Wednesday: Snow. The snow could be heavy at times. High near 31. Breezy, with a west wind 17 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of 11 to 15 inches possible.

    High: 31 °F

    Heavy Snow
    and Breezy

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times. Low around 24. Breezy, with a west wind 18 to 20 mph. Chance of precipitation is 80%. New snow accumulation of 10 to 14 inches possible.

    Low: 24 °F

    Heavy Snow
    and Breezy

  • Thursday

    Thursday: Snow. The snow could be heavy at times. High near 27. Breezy, with a west wind 14 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    High: 27 °F

    Heavy Snow
    and Breezy

  • Thursday Night

    Thursday Night: A 40 percent chance of snow, mainly before 4am. Mostly cloudy, with a low around 22. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Chance Snow

  • Friday

    Friday: A 40 percent chance of snow, mainly after 10am. Mostly cloudy, with a high near 28. Little or no snow accumulation expected.

    High: 28 °F

    Chance Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow, mainly before 10pm. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Chance Snow

  • Saturday

    Saturday: A 30 percent chance of snow, mainly after 10am. Mostly cloudy, with a high near 26.

    High: 26 °F

    Chance Snow

Detailed Forecast

Today
Snow likely, mainly after 4pm. The snow could be heavy at times. Mostly cloudy, with a high near 25. Breezy, with a west wind 13 to 18 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Snow. The snow could be heavy at times. Temperature rising to around 31 by 5am. West wind 8 to 17 mph. Chance of precipitation is 100%. New snow accumulation of 12 to 18 inches possible.
Wednesday
Snow. The snow could be heavy at times. High near 31. Breezy, with a west wind 17 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of 11 to 15 inches possible.
Wednesday Night
Snow. The snow could be heavy at times. Low around 24. Breezy, with a west wind 18 to 20 mph. Chance of precipitation is 80%. New snow accumulation of 10 to 14 inches possible.
Thursday
Snow. The snow could be heavy at times. High near 27. Breezy, with a west wind 14 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Thursday Night
A 40 percent chance of snow, mainly before 4am. Mostly cloudy, with a low around 22. New snow accumulation of less than a half inch possible.
Friday
A 40 percent chance of snow, mainly after 10am. Mostly cloudy, with a high near 28. Little or no snow accumulation expected.
Friday Night
A 30 percent chance of snow, mainly before 10pm. Mostly cloudy, with a low around 24.
Saturday
A 30 percent chance of snow, mainly after 10am. Mostly cloudy, with a high near 26.
Saturday Night
Snow likely, mainly after 10pm. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Sunday
Snow likely. Mostly cloudy, with a high near 23. Chance of precipitation is 60%.
Sunday Night
Snow likely. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.
Monday
Snow. The snow could be heavy at times. High near 26. Chance of precipitation is 80%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SW Twisp WA
 48.18°N 120.36°W (Elev. 7339 ft)
Last Update:
9:28 am PST Dec 9, 2025
Forecast Valid:
10am PST Dec 9, 2025-6pm PST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation