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

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Current conditions at

NCSB (NCSW1)

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

NA

35°F

2°C

Humidity 97%
Wind Speed N 1 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 07 Dec 01:06 PM PST
Extended Forecast for

11 Miles E Twisp WA

  • This Afternoon

    This Afternoon: A 30 percent chance of snow, mainly before 4pm. Partly sunny, with a high near 33. West wind around 6 mph. Total daytime snow accumulation of around an inch possible.

    High: 33 °F

    Chance Snow

  • Tonight

    Tonight: A 30 percent chance of snow, mainly between 1am and 4am. Mostly cloudy, with a low around 30. West wind around 6 mph. Little or no snow accumulation expected.

    Low: 30 °F

    Chance Snow

  • Monday

    Monday: Rain, possibly mixed with snow, becoming all rain after 4pm. High near 37. Southeast wind 5 to 7 mph becoming southwest in the afternoon. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Rain/Snow

  • Monday Night

    Monday Night: Rain before 10pm, then a chance of rain and snow between 10pm and 4am, then a slight chance of rain after 4am. Low around 32. West wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Tuesday

    Tuesday: Snow likely, mainly after 4pm. Partly sunny, with a high near 36. West wind 6 to 11 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Chance Snow
    then Snow
    Likely

  • Tuesday Night

    Tuesday Night: Snow. Low around 30. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 30 °F

    Snow

  • Wednesday

    Wednesday: Snow likely, possibly mixed with rain. Mostly cloudy, with a high near 37. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 10pm, then a chance of snow. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.

    Low: 30 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Thursday

    Thursday: A 40 percent chance of snow. Mostly cloudy, with a high near 35.

    High: 35 °F

    Chance Snow

Detailed Forecast

This Afternoon
A 30 percent chance of snow, mainly before 4pm. Partly sunny, with a high near 33. West wind around 6 mph. Total daytime snow accumulation of around an inch possible.
Tonight
A 30 percent chance of snow, mainly between 1am and 4am. Mostly cloudy, with a low around 30. West wind around 6 mph. Little or no snow accumulation expected.
Monday
Rain, possibly mixed with snow, becoming all rain after 4pm. High near 37. Southeast wind 5 to 7 mph becoming southwest in the afternoon. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Monday Night
Rain before 10pm, then a chance of rain and snow between 10pm and 4am, then a slight chance of rain after 4am. Low around 32. West wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Tuesday
Snow likely, mainly after 4pm. Partly sunny, with a high near 36. West wind 6 to 11 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday Night
Snow. Low around 30. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday
Snow likely, possibly mixed with rain. Mostly cloudy, with a high near 37. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday Night
A chance of rain and snow before 10pm, then a chance of snow. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Thursday
A 40 percent chance of snow. Mostly cloudy, with a high near 35.
Thursday Night
A chance of snow before 1am, then a chance of rain and snow between 1am and 4am, then a chance of snow after 4am. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Friday
A slight chance of rain and snow. Mostly cloudy, with a high near 35. Chance of precipitation is 20%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 35. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles E Twisp WA
 48.39°N 119.88°W (Elev. 4150 ft)
Last Update:
1:21 pm PST Dec 7, 2025
Forecast Valid:
2pm PST Dec 7, 2025-6pm PST Dec 13, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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