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

Stampede Pass (KSMP)

Lat: 47.27648°NLon: 121.33817°WElev: 3970.0ft.

Mist

32°F

0°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 32°F (0°C)
Visibility 3.00 mi
Last update 09 Dec 11:07 AM PST
Extended Forecast for

14 Miles ENE Snoqualmie Pass WA

Flood Watch December 9, 11:17am until December 12, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 9, 11:17am until December 12, 07:00am

    NOW until 7:00am Fri

    Flood Watch

  • Today

    High: 33 °F

    Heavy Snow

  • Tonight

    Tonight: Rain, possibly mixed with snow, becoming all rain after 1am. The rain and snow could be heavy at times.  Temperature rising to around 38 by 5am. West wind 10 to 20 mph, with gusts as high as 29 mph.  Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 29 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain before 10am, then rain, possibly mixed with snow. The rain could be heavy at times.  High near 38. West wind 14 to 18 mph, with gusts as high as 26 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 38 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow.  Low around 32. West wind 18 to 20 mph, with gusts as high as 29 mph.  Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    Low: 32 °F

    Rain/Snow

  • Thursday

    Thursday: Rain and snow, becoming all snow after 10am.  High near 34. West wind 11 to 16 mph, with gusts as high as 23 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 34 °F

    Rain/Snow
    then Snow

  • Thursday Night

    Thursday Night: Snow likely before 1am, then rain likely, possibly mixed with snow.  Mostly cloudy, with a low around 32. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Snow Likely
    then
    Rain/Snow
    Likely

  • Friday

    Friday: A chance of rain and snow.  Mostly cloudy, with a high near 36. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 36 °F

    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain and snow.  Mostly cloudy, with a low around 32. Chance of precipitation is 40%.

    Low: 32 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
Snow, mainly after 1pm. The snow could be heavy at times. High near 33. Southwest wind around 7 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
Rain, possibly mixed with snow, becoming all rain after 1am. The rain and snow could be heavy at times. Temperature rising to around 38 by 5am. West wind 10 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Wednesday
Rain before 10am, then rain, possibly mixed with snow. The rain could be heavy at times. High near 38. West wind 14 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday Night
Rain and snow. Low around 32. West wind 18 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Thursday
Rain and snow, becoming all snow after 10am. High near 34. West wind 11 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
Snow likely before 1am, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 32. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 36. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 37.
Saturday Night
Snow likely. Mostly cloudy, with a low around 30.
Sunday
Snow likely. Mostly cloudy, with a high near 31.
Sunday Night
Snow. Mostly cloudy, with a low around 30.
Monday
Snow. The snow could be heavy at times. Mostly cloudy, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles ENE Snoqualmie Pass WA
 47.53°N 121.15°W (Elev. 5712 ft)
9:15 am PST Dec 9, 2025
11am PST Dec 9, 2025-6pm PST Dec 15, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database