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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.

snow,freezing fog

31°F

-1°C

Humidity	100%
Wind Speed	N 3 MPH
Barometer	29.66 in (1004.4 mb)
Dewpoint	31°F (-1°C)
Visibility	0.50 mi
Last update	15 Apr 02:13 AM 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, 02:37am until April 15, 11:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory April 15, 02:37am until April 15, 11:00pm
NOW until 11:00pm Wed
Winter Weather Advisory
Overnight
Low: 26 °F
Slight Chance
Snow
Wednesday
High: 34 °F
Snow Showers
Likely then
Snow Showers
Wednesday Night
Low: 26 °F
Heavy Snow
then Slight
Chance Snow
Thursday
High: 38 °F
Partly Sunny
Thursday Night
Low: 29 °F
Chance Snow
then Mostly
Cloudy
Friday
High: 45 °F
Mostly Sunny
Friday Night
Low: 32 °F
Mostly Cloudy
Saturday
High: 51 °F
Partly Sunny

Detailed Forecast

Overnight

A 20 percent chance of snow before 5am. Mostly cloudy, with a low around 26. West wind around 5 mph, with gusts as high as 20 mph.

Wednesday

A chance of snow between 8am and 11am, then snow showers after 11am. Some thunder is also possible. High near 34. West wind 3 to 8 mph. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Wednesday Night

Snow likely, mainly before 11pm. The snow could be heavy at times. Mostly cloudy, with a low around 26. West wind 3 to 7 mph. Winds could gust as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 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 25 mph.

Thursday Night

A 30 percent chance of snow before 11pm. Mostly cloudy, with a low around 29. West wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 26 mph.

Friday

Mostly sunny, with a high near 45.

Friday Night

Mostly cloudy, with a low around 32.

Saturday

Partly sunny, with a high near 51.

Saturday Night

A 40 percent chance of rain. Mostly cloudy, with a low around 38.

Sunday

A chance of rain. Partly sunny, with a high near 56.

Sunday Night

A chance of rain. Mostly cloudy, with a low around 39.