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New Version of Climate Plots Arrives May 1, 2026: Early Access Now Available Under "Climate Graphs and Charts"
SCN26-34: Discontinuation of the Max/Min Temperature and Precipitation Table Product (RTP) for all NWS Alaska Region, Eastern Region, and Western Region Offices: Effective May 6, 2026

Hazardous Weather Conditions

Winter Weather Advisory until April 15, 11:00 PM PDT

Current conditions at

Stampede Pass (KSMP)

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

heavy snow,freezing fog

27°F

-3°C

Humidity	96%
Wind Speed	N 0 MPH
Barometer	29.76 in (1007.79 mb)
Dewpoint	26°F (-3°C)
Visibility	0.25 mi
Last update	15 Apr 04:56 PM PDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

8 Miles S Snoqualmie Pass WA

Winter Weather Advisory April 15, 05:52pm until April 15, 11:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory April 15, 05:52pm until April 15, 11:00pm
NOW until 11:00pm Wed
Winter Weather Advisory
This Afternoon
High: 31 °F
Heavy Snow
Tonight
Low: 25 °F
Heavy Snow
then Chance
Snow
Thursday
High: 38 °F
Partly Sunny
Thursday Night
Low: 28 °F
Slight Chance
Snow then
Mostly Cloudy
Friday
High: 45 °F
Mostly Sunny
Friday Night
Low: 33 °F
Mostly Cloudy
Saturday
High: 52 °F
Partly Sunny
Saturday Night
Low: 38 °F
Slight Chance
Rain

Detailed Forecast

This Afternoon

Snow. The snow could be heavy at times. Steady temperature around 31. West wind around 7 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 1 to 3 inches possible.

Tonight

Snow, mainly before 11pm. The snow could be heavy at times. Low around 25. West wind 3 to 7 mph. Winds could gust as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

Thursday

Partly sunny, with a high near 38. Light west wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 28 mph.

Thursday Night

A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 28. West wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 28 mph.

Friday

Mostly sunny, with a high near 45. Calm wind.

Friday Night

Mostly cloudy, with a low around 33.

Saturday

Partly sunny, with a high near 52.

Saturday Night

A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 38.

Sunday

A 20 percent chance of rain. Partly sunny, with a high near 58.

Sunday Night

A slight chance of rain before 11pm. Mostly cloudy, with a low around 40.