Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Current conditions at

Stampede Pass (KSMP)

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

light rain,mist

47°F

8°C

Humidity 100%
Wind Speed WSW 6 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 47°F (8°C)
Visibility 0.75 mi
Wind Chill44°F (7°C)
Last update 10 Dec 10:56 AM PST
Extended Forecast for

4 Miles S Snoqualmie Pass WA

Flood Watch December 10, 11:42am until December 12, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 10, 11:42am until December 12, 07:00am

    NOW until 7:00am Fri

    Flood Watch

  • Today

    High: 47 °F

    Heavy Rain

  • Tonight

    Tonight: Rain. The rain could be heavy at times.  Low around 39. West wind 11 to 15 mph, with gusts as high as 32 mph.  Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

    Low: 39 °F

    Heavy Rain

  • Thursday

    Thursday: Rain.  Steady temperature around 40. West wind around 8 mph, with gusts as high as 23 mph.  Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 40 °F

    Rain

  • Thursday Night

    Thursday Night: Rain.  Low around 39. Calm wind.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Rain

  • Friday

    Friday: Rain likely, mainly before 4pm.  Mostly cloudy, with a high near 44. Calm wind becoming west around 6 mph in the morning.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 44 °F

    Rain Likely

  • Friday Night

    Friday Night: A 40 percent chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain

  • Saturday

    Saturday: A 30 percent chance of rain, mainly after 4pm.  Mostly sunny, with a high near 47.

    High: 47 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly after 10pm.  Mostly cloudy, with a low around 38. Chance of precipitation is 60%.

    Low: 38 °F

    Rain Likely

Detailed Forecast

Today
Rain. The rain could be heavy at times. High near 47. West wind 11 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Tonight
Rain. The rain could be heavy at times. Low around 39. West wind 11 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.
Thursday
Rain. Steady temperature around 40. West wind around 8 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Thursday Night
Rain. Low around 39. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain likely, mainly before 4pm. Mostly cloudy, with a high near 44. Calm wind becoming west around 6 mph in the morning. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A 40 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 37.
Saturday
A 30 percent chance of rain, mainly after 4pm. Mostly sunny, with a high near 47.
Saturday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Sunday
Rain. High near 42. Chance of precipitation is 80%.
Sunday Night
Rain likely. Mostly cloudy, with a low around 38.
Monday
Rain. Mostly cloudy, with a high near 43.
Monday Night
Rain, possibly mixed with snow. Mostly cloudy, with a low around 35.
Tuesday
Rain and snow. Mostly cloudy, with a high near 38.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Snoqualmie Pass WA
 47.34°N 121.42°W (Elev. 3399 ft)
11:16 am PST Dec 10, 2025
11am PST Dec 10, 2025-6pm PST Dec 16, 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