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.

Mist

27°F

-3°C

Humidity 100%
Wind Speed N 3 MPH
Barometer 29.74 in (1007.11 mb)
Dewpoint 27°F (-3°C)
Visibility 3.00 mi
Last update 01 Jan 10:15 PM PST
Extended Forecast for

Snoqualmie Pass WA

Winter Weather Advisory January 1, 10:32pm until January 2, 07:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory January 1, 10:32pm until January 2, 07:00am

    NOW until 7:00am Fri

    Winter Weather Advisory

  • Tonight

    Low: 31 °F⇑

    Rain/Freezing
    Rain

  • Friday

    Friday: Rain. High near 40. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 40 °F

    Rain

  • Friday Night

    Friday Night: Rain, mainly before 10pm. Low around 36. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Rain then
    Chance Rain

  • Saturday

    Saturday: Rain. High near 39. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 39 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 35. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 35 °F

    Rain

  • Sunday

    Sunday: Rain, possibly mixed with snow. High near 38. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 38 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow. Low around 32. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain/Snow

  • Monday

    Monday: Snow likely, mainly before 10am. Mostly cloudy, with a high near 37. Chance of precipitation is 70%.

    High: 37 °F

    Snow Likely

Detailed Forecast

Tonight
Rain or freezing rain, becoming all rain after 1am. Temperature rising to around 35 by 5am. Calm wind. Chance of precipitation is 90%. Total nighttime ice accumulation of less than a 0.1 of an inch possible.
Friday
Rain. High near 40. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain, mainly before 10pm. Low around 36. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain. High near 39. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain. Low around 35. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain, possibly mixed with snow. High near 38. Chance of precipitation is 90%. Little or no snow accumulation expected.
Sunday Night
Rain and snow. Low around 32. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
Snow likely, mainly before 10am. Mostly cloudy, with a high near 37. Chance of precipitation is 70%.
Monday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 28.
Tuesday
Snow likely before 1pm, then rain likely, possibly mixed with snow. Mostly cloudy, with a high near 36.
Tuesday Night
Rain and snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 30.
Wednesday
Snow likely. Mostly cloudy, with a high near 35.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 25.
Thursday
A chance of snow. Mostly cloudy, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Snoqualmie Pass WA
 47.41°N 121.41°W (Elev. 2812 ft)
Last Update:
9:15 pm PST Jan 1, 2026
Forecast Valid:
10pm PST Jan 1, 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