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Heavy Rain Return to the Southwest U.S.; Potential Atlantic Tropical System Interaction

Heavy to excessive rainfall from monsoon thunderstorms may bring isolated flash and urban flooding to the Desert Southwest into Sunday. The tropical wave (AL94) continues to bring heavy rainfall to Puerto Rico and the US Virgin Islands. The close proximity of Tropical Storm Humberto and AL94 could lead to interaction between them, but details of their track and intensity forecasts remain uncertain Read More >

Hazardous Weather Conditions

Current conditions at

Stampede Pass (KSMP)

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

Clear

56°F

13°C

Humidity 57%
Wind Speed NA 5 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 25 Sep 01:56 PM PDT
Extended Forecast for

6 Miles E Snoqualmie Pass WA

Red Flag Warning until September 25, 11:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning until September 25, 11:00pm

    NOW until 11:00pm Thu

    Red Flag Warning

  • This Afternoon

    High: 60 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 42. Northwest wind 5 to 10 mph, with gusts as high as 23 mph.

    Low: 42 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 62. West wind 3 to 7 mph.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 48. West wind 5 to 8 mph becoming calm in the evening.

    Low: 48 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 69. Calm wind becoming west around 5 mph in the afternoon.

    High: 69 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Showers likely, mainly after 11pm. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Partly sunny, with a high near 60. Northwest wind around 11 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy, with a low around 42. Northwest wind 5 to 10 mph, with gusts as high as 23 mph.
Friday
Sunny, with a high near 62. West wind 3 to 7 mph.
Friday Night
Increasing clouds, with a low around 48. West wind 5 to 8 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 69. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Partly sunny, with a high near 70.
Sunday Night
Showers likely, mainly after 11pm. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.
Monday
Showers likely. Mostly cloudy, with a high near 58. Chance of precipitation is 70%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 44.
Tuesday
A chance of showers. Mostly cloudy, with a high near 57.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 44.
Wednesday
Showers likely. Mostly cloudy, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles E Snoqualmie Pass WA
 47.4°N 121.28°W (Elev. 3323 ft)
Last Update:
10:15 am PDT Sep 25, 2025
Forecast Valid:
2pm PDT Sep 25, 2025-6pm PDT Oct 1, 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