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

34°F

1°C

Humidity 100%
Wind Speed NW 2 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 07 Dec 04:06 PM PST
Extended Forecast for

8 Miles WSW Twisp WA

  • This Afternoon

    This Afternoon: Snow likely. Mostly cloudy, with a high near 33. East wind around 6 mph. Chance of precipitation is 60%. Total daytime snow accumulation of 1 to 2 inches possible.

    High: 33 °F

    Snow Likely

  • Tonight

    Tonight: Snow likely, possibly mixed with rain before 10pm, then a chance of snow between 10pm and 4am. Mostly cloudy, with a low around 32. North wind around 6 mph becoming south after midnight. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Monday

    Monday: Rain, possibly mixed with snow, becoming all rain after 1pm. High near 37. Light and variable wind becoming southwest 5 to 9 mph in the morning. 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 rain likely, possibly mixed with snow between 10pm and 1am, then snow likely after 1am. Low around 32. West wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 32 °F

    Rain/Snow

  • Tuesday

    Tuesday: Snow, mainly after 4pm. High near 35. West wind 6 to 11 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 35 °F

    Chance Snow
    then Snow

  • Tuesday Night

    Tuesday Night: Snow. Low around 32. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 32 °F

    Snow

  • Wednesday

    Wednesday: Snow, possibly mixed with rain. High near 37. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 37 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 7pm, then a chance of snow. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.

    Low: 30 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Thursday

    Thursday: A 50 percent chance of snow. Partly sunny, with a high near 35.

    High: 35 °F

    Chance Snow

Detailed Forecast

This Afternoon
Snow likely. Mostly cloudy, with a high near 33. East wind around 6 mph. Chance of precipitation is 60%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
Snow likely, possibly mixed with rain before 10pm, then a chance of snow between 10pm and 4am. Mostly cloudy, with a low around 32. North wind around 6 mph becoming south after midnight. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
Rain, possibly mixed with snow, becoming all rain after 1pm. High near 37. Light and variable wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Monday Night
Rain before 10pm, then rain likely, possibly mixed with snow between 10pm and 1am, then snow likely after 1am. Low around 32. West wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Tuesday
Snow, mainly after 4pm. High near 35. West wind 6 to 11 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Tuesday Night
Snow. Low around 32. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Wednesday
Snow, possibly mixed with rain. High near 37. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Wednesday Night
A chance of rain and snow before 7pm, then a chance of snow. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
Thursday
A 50 percent chance of snow. Partly sunny, with a high near 35.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 50%.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 36. Chance of precipitation is 40%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Saturday
A chance of rain and snow. Partly sunny, with a high near 37. Chance of precipitation is 40%.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
Sunday
A 50 percent chance of snow. Partly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WSW Twisp WA
 48.32°N 120.27°W (Elev. 4334 ft)
Last Update:
2:48 pm PST Dec 7, 2025
Forecast Valid:
5pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation