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

51°F

11°C

Humidity 73%
Wind Speed SW 4 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 20 Sep 07:56 AM PDT
Extended Forecast for

Snoqualmie Pass WA

  • Today

    Today: Sunny, with a high near 68. Calm wind becoming west around 6 mph in the afternoon.

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Showers after 2am. Low around 48. Light west wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Mostly Cloudy
    then Showers

  • Sunday

    Sunday: Showers, mainly before 11am. High near 53. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 53 °F

    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 40. Northwest wind around 6 mph becoming calm in the evening.

    Low: 40 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 65. Light and variable wind.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 68. Calm wind becoming west around 6 mph in the afternoon.
Tonight
Showers after 2am. Low around 48. Light west wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers, mainly before 11am. High near 53. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 40. Northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 65. Light and variable wind.
Monday Night
Clear, with a low around 46.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 44.
Friday
A slight chance of showers. Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Snoqualmie Pass WA
 47.43°N 121.41°W (Elev. 3087 ft)
Last Update:
4:20 am PDT Sep 20, 2025
Forecast Valid:
8am PDT Sep 20, 2025-6pm PDT Sep 26, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation