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 >

Current conditions at

Stampede Pass (KSMP)

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

Mist

37°F

3°C

Humidity 100%
Wind Speed W 10 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 37°F (3°C)
Visibility 5.00 mi
Wind Chill30°F (-1°C)
Last update 07 Dec 04:06 PM PST
Extended Forecast for

5 Miles ESE Snoqualmie Pass WA

  • This Afternoon

    This Afternoon: Rain. High near 38. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 38 °F

    Rain

  • Tonight

    Tonight: Rain and snow before 10pm, then snow between 10pm and 4am, then a chance of rain and snow after 4am. Low around 33. West wind 11 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain/Snow

  • Monday

    Monday: A chance of rain and snow before 7am, then rain. The rain could be heavy at times. High near 42. Southwest wind 8 to 11 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 42 °F

    Rain/Snow
    then Heavy
    Rain

  • Monday Night

    Monday Night: Rain before 10pm, then rain and snow. The rain could be heavy at times. Low around 30. West wind around 20 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    Low: 30 °F

    Rain/Snow

  • Tuesday

    Tuesday: Snow. High near 36. West wind 7 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 36 °F

    Snow

  • Tuesday Night

    Tuesday Night: Rain, possibly mixed with snow. The rain could be heavy at times. Low around 32. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 32 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow. The rain could be heavy at times. High near 39. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    High: 39 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow. The rain could be heavy at times. Low around 34. Chance of precipitation is 80%.

    Low: 34 °F

    Rain/Snow

  • Thursday

    Thursday: Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 37. Chance of precipitation is 70%.

    High: 37 °F

    Rain/Snow
    Likely

Detailed Forecast

This Afternoon
Rain. High near 38. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain and snow before 10pm, then snow between 10pm and 4am, then a chance of rain and snow after 4am. Low around 33. West wind 11 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Monday
A chance of rain and snow before 7am, then rain. The rain could be heavy at times. High near 42. Southwest wind 8 to 11 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Monday Night
Rain before 10pm, then rain and snow. The rain could be heavy at times. Low around 30. West wind around 20 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Tuesday
Snow. High near 36. West wind 7 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Tuesday Night
Rain, possibly mixed with snow. The rain could be heavy at times. Low around 32. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday
Rain and snow. The rain could be heavy at times. High near 39. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Wednesday Night
Rain and snow. The rain could be heavy at times. Low around 34. Chance of precipitation is 80%.
Thursday
Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 37. Chance of precipitation is 70%.
Thursday Night
Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 35.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 40.
Friday Night
A chance of rain. Mostly cloudy, with a low around 35.
Saturday
Rain likely. Partly sunny, with a high near 40.
Saturday Night
Rain and snow likely. Mostly cloudy, with a low around 33.
Sunday
Rain and snow likely. Mostly cloudy, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Snoqualmie Pass WA
 47.37°N 121.33°W (Elev. 4629 ft)
Last Update:
3:20 pm PST Dec 7, 2025
Forecast Valid:
4pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

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