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

Heavy Rainfall for Portions of the West and Central U.S.; Monitoring Fire Weather Conditions for New England

Tropical moisture continues to flow across portions of the Great Basin, desert Southwest and California. Isolated instances of flash flooding remains possible. Meanwhile, a storm and associated frontal boundary will focus showers and thunderstorms for the center of the nation. For New England, dry and breezy conditions could enhance favorable fire weather conditions. Read More >

Current conditions at

Stampede Pass (KSMP)

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

Clear

66°F

19°C

Humidity 43%
Wind Speed NA 3 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 20 Sep 04:56 PM PDT
Extended Forecast for

4 Miles S Snoqualmie Pass WA

  • Tonight

    Tonight: Showers after 11pm. Widespread haze between 8pm and 11pm. Low around 48. West wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Showers

  • Sunday

    Sunday: Showers, mainly before 8am. Steady temperature around 50. Light west wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers between 8pm and 11pm. Partly cloudy, with a low around 41. Northwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

    Low: 41 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 64. Light and variable wind.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 48. Calm wind becoming east around 5 mph after midnight.

    Low: 48 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers after 11pm. Widespread haze between 8pm and 11pm. Low around 48. West wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers, mainly before 8am. Steady temperature around 50. Light west wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A slight chance of showers between 8pm and 11pm. Partly cloudy, with a low around 41. Northwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 64. Light and variable wind.
Monday Night
Clear, with a low around 48. Calm wind becoming east around 5 mph after midnight.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 71.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 63.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 47.
Saturday
A chance of showers. Partly sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Snoqualmie Pass WA
 47.34°N 121.42°W (Elev. 3399 ft)
Last Update:
5:17 pm PDT Sep 20, 2025
Forecast Valid:
5pm PDT Sep 20, 2025-6pm PDT Sep 27, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

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