Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Hydrologic Outlook

Current conditions at

Stampede Pass (KSMP)

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

Overcast

36°F

2°C

Humidity	100%
Wind Speed	W 8 MPH
Barometer	30.04 in (1017.27 mb)
Dewpoint	36°F (2°C)
Visibility	10.00 mi
Wind Chill	30°F (-1°C)
Last update	07 Dec 08:15 PM PST

More Information:

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

Extended Forecast for

6 Miles NE Snoqualmie Pass WA

Tonight
Low: 32 °F
Snow
Monday
High: 38 °F
Rain/Snow
Monday Night
Low: 29 °F
Rain/Snow and
Breezy
Tuesday
High: 33 °F
Heavy Snow
Tuesday Night
Low: 30 °F
Rain/Snow
Wednesday
High: 35 °F
Rain/Snow
Wednesday Night
Low: 31 °F
Rain/Snow
Thursday
High: 34 °F
Rain/Snow
Likely
Thursday Night
Low: 33 °F
Rain/Snow
Likely

Detailed Forecast

Tonight

Snow, mainly before 4am. Low around 32. West wind 15 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 3 inches possible.

Monday

Rain, possibly mixed with snow, becoming all rain after 1pm. The rain could be heavy at times. High near 38. Southwest wind 10 to 13 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

Monday Night

Rain before 10pm, then rain, possibly mixed with snow between 10pm and 1am, then snow after 1am. The rain and snow could be heavy at times. Low around 29. Breezy, with a west wind 22 to 24 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

Tuesday

Snow. The snow could be heavy at times. High near 33. West wind 7 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

Tuesday Night

Rain, possibly mixed with snow. The rain and snow could be heavy at times. Low around 30. West wind 10 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

Wednesday

Rain and snow. The rain and snow could be heavy at times. High near 35. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

Wednesday Night

Rain and snow. The rain and snow could be heavy at times. Low around 31. Chance of precipitation is 80%. New snow accumulation of 4 to 8 inches possible.

Thursday

Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 34. Chance of precipitation is 70%.

Thursday Night

Rain and snow likely. Mostly cloudy, with a low around 33. Chance of precipitation is 70%.

Friday

Rain and snow likely, mainly before 10am. Mostly cloudy, with a high near 37.

Friday Night

A chance of rain. Mostly cloudy, with a low around 33.

Saturday

Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 36.

Saturday Night

Rain and snow likely. Mostly cloudy, with a low around 31.