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

Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

STEHEKIN-AIRSTRIP (STRW1)

Lat: 48.34694°NLon: 120.72028°WElev: 1230.0ft.

NA

40°F

4°C

Humidity 98%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 09 Dec 09:01 PM PST
Extended Forecast for

15 Miles SW Twisp WA

  • Tonight

    Tonight: Snow before 3am, then snow, possibly mixed with rain. The rain and snow could be heavy at times. Temperature rising to around 31 by 3am. Southwest wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 8 to 12 inches possible.

    Low: 23 °F⇑

    Heavy Snow
    then
    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow, becoming all snow after 1pm. The rain and snow could be heavy at times. High near 34. Windy, with a west wind 26 to 28 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    High: 34 °F

    Rain/Snow and
    Windy

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times. Low around 25. Windy, with a west wind 20 to 28 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

    Low: 25 °F

    Heavy Snow
    and Windy

  • Thursday

    Thursday: Snow likely, mainly before 10am. Mostly cloudy, with a high near 28. Windy, with a west wind 25 to 30 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 48 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 28 °F

    Snow Likely
    and Windy

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 22. West wind around 10 mph, with gusts as high as 20 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 30. New snow accumulation of less than a half inch possible.

    High: 30 °F

    Chance Snow

  • Friday Night

    Friday Night: A 40 percent chance of snow, mainly before 4am. Mostly cloudy, with a low around 24. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Chance Snow

  • Saturday

    Saturday: A 30 percent chance of snow, mainly after 10am. Partly sunny, with a high near 27.

    High: 27 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Chance Snow

Detailed Forecast

Tonight
Snow before 3am, then snow, possibly mixed with rain. The rain and snow could be heavy at times. Temperature rising to around 31 by 3am. Southwest wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 8 to 12 inches possible.
Wednesday
Rain and snow, becoming all snow after 1pm. The rain and snow could be heavy at times. High near 34. Windy, with a west wind 26 to 28 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Wednesday Night
Snow. The snow could be heavy at times. Low around 25. Windy, with a west wind 20 to 28 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
Thursday
Snow likely, mainly before 10am. Mostly cloudy, with a high near 28. Windy, with a west wind 25 to 30 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 48 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 22. West wind around 10 mph, with gusts as high as 20 mph. New snow accumulation of less than a half inch possible.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 30. New snow accumulation of less than a half inch possible.
Friday Night
A 40 percent chance of snow, mainly before 4am. Mostly cloudy, with a low around 24. New snow accumulation of less than a half inch possible.
Saturday
A 30 percent chance of snow, mainly after 10am. Partly sunny, with a high near 27.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 22.
Sunday
Snow likely. Mostly cloudy, with a high near 27. Chance of precipitation is 60%.
Sunday Night
Snow likely. Mostly cloudy, with a low around 20. Chance of precipitation is 60%.
Monday
Snow. The snow could be heavy at times. High near 25. Chance of precipitation is 80%.
Monday Night
Snow. The snow could be heavy at times. Low around 21. Chance of precipitation is 90%.
Tuesday
Snow likely. Mostly cloudy, with a high near 26. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles SW Twisp WA
 48.24°N 120.38°W (Elev. 6827 ft)
Last Update:
5:48 pm PST Dec 9, 2025
Forecast Valid:
9pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation