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

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Hazardous Weather Conditions

Current conditions at

Stampede Pass (KSMP)

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

unknown precip,mist

27°F

-3°C

Humidity 100%
Wind Speed E 3 MPH
Barometer 29.76 in (1007.79 mb)
Dewpoint 27°F (-3°C)
Visibility 1.75 mi
Last update 02 Jan 02:47 AM PST
Extended Forecast for

Snoqualmie Pass WA

Winter Weather Advisory January 2, 03:11am until January 2, 07:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory January 2, 03:11am until January 2, 07:00am

    NOW until 7:00am Fri

    Winter Weather Advisory

  • Overnight

    Low: 28 °F

    Rain/Freezing
    Rain

  • Friday

    Friday: Rain. High near 38. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 38 °F

    Rain

  • Friday Night

    Friday Night: Rain before 4am, then a chance of rain and snow. Low around 35. Light southeast wind. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain then
    Chance
    Rain/Snow

  • Saturday

    Saturday: Rain, possibly mixed with snow, becoming all rain after 10am. High near 37. Light southeast wind. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 37 °F

    Rain/Snow
    then Rain

  • Saturday Night

    Saturday Night: Rain, possibly mixed with snow before 10pm, then rain between 10pm and 4am, then rain, possibly mixed with snow after 4am. Low around 33. Light southeast wind. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain/Snow

  • Sunday

    Sunday: Rain and snow. High near 36. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    High: 36 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow, becoming all snow after 7pm. Low around 30. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    Low: 30 °F

    Rain/Snow
    then Snow
    Likely

  • Monday

    Monday: Snow likely, mainly before 10am. Mostly cloudy, with a high near 33. Chance of precipitation is 60%.

    High: 33 °F

    Snow Likely

Detailed Forecast

Overnight
Rain, possibly mixed with freezing rain. Low around 28. Calm wind. Chance of precipitation is 100%. Total nighttime ice accumulation of less than a 0.1 of an inch possible.
Friday
Rain. High near 38. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain before 4am, then a chance of rain and snow. Low around 35. Light southeast wind. Chance of precipitation is 80%. Little or no snow accumulation expected.
Saturday
Rain, possibly mixed with snow, becoming all rain after 10am. High near 37. Light southeast wind. Chance of precipitation is 100%. Little or no snow accumulation expected.
Saturday Night
Rain, possibly mixed with snow before 10pm, then rain between 10pm and 4am, then rain, possibly mixed with snow after 4am. Low around 33. Light southeast wind. Chance of precipitation is 100%. Little or no snow accumulation expected.
Sunday
Rain and snow. High near 36. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Sunday Night
Rain and snow, becoming all snow after 7pm. Low around 30. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Monday
Snow likely, mainly before 10am. Mostly cloudy, with a high near 33. Chance of precipitation is 60%.
Monday Night
Snow likely, mainly after 4am. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.
Tuesday
Snow. Mostly cloudy, with a high near 33.
Tuesday Night
Snow. The snow could be heavy at times. Mostly cloudy, with a low around 26.
Wednesday
Snow. The snow could be heavy at times. Mostly cloudy, with a high near 31.
Wednesday Night
Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 24.
Thursday
Snow likely. Mostly cloudy, with a high near 31.
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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:
2:31 am PST Jan 2, 2026
Forecast Valid:
3am PST Jan 2, 2026-6pm PST Jan 8, 2026
 
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