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

Heavy Rain and Thunderstorms in the Plains; Tropical Moisture Brings Heavy Rain to Southern California and Southwest

Heavy rain showers and thunderstorms, some severe, will persist across the Plains and Mississippi Valley through Friday. Increasing tropical moisture from the remnants of Mario will bring showers, thunderstorms, and a flash flooding threat across much of southern California into the Desert Southwest through Friday. Read More >

Current conditions at

Stampede Pass (KSMP)

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

Clear

68°F

20°C

Humidity 46%
Wind Speed NA 5 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 17 Sep 03:56 PM PDT
Extended Forecast for

2 Miles ESE Snoqualmie Pass WA

  • Tonight

    Tonight: Increasing clouds, with a low around 47. Light north wind.

    Low: 47 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 70. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. Northwest wind around 5 mph becoming calm in the evening.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77. Calm wind becoming west around 5 mph in the afternoon.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46. West wind around 5 mph becoming calm in the evening.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Showers likely, mainly after 11pm. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.

    Low: 49 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely, mainly before 11am. Partly sunny, with a high near 60. Chance of precipitation is 60%.

    High: 60 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Slight Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 47. Light north wind.
Thursday
Mostly sunny, with a high near 70. Calm wind becoming northwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 45. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 77. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 46. West wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 71.
Saturday Night
Showers likely, mainly after 11pm. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Sunday
Showers likely, mainly before 11am. Partly sunny, with a high near 60. Chance of precipitation is 60%.
Sunday Night
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 70.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 48.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 74.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 50.
Wednesday
A chance of showers. Partly sunny, with a high near 69.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Snoqualmie Pass WA
 47.41°N 121.37°W (Elev. 2628 ft)
Last Update:
4:15 pm PDT Sep 17, 2025
Forecast Valid:
4pm PDT Sep 17, 2025-6pm PDT Sep 24, 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