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.

unknown precip,fog

32°F

0°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	29.89 in (1012.19 mb)
Dewpoint	32°F (0°C)
Visibility	0.50 mi
Last update	07 Dec 10:36 AM PST

More Information:

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

Extended Forecast for

3 Miles SE Snoqualmie Pass WA

Today
High: 40 °F
Rain/Snow
Tonight
Low: 35 °F
Rain
Monday
High: 44 °F
Heavy Rain
Monday Night
Low: 32 °F
Heavy Rain
Tuesday
High: 37 °F
Rain/Snow
Tuesday Night
Low: 33 °F
Rain/Snow
Wednesday
High: 40 °F
Rain/Snow
Wednesday Night
Low: 31 °F
Rain/Snow
Likely
Thursday
High: 38 °F
Rain/Snow
Likely

Detailed Forecast

Today

Rain, possibly mixed with snow, becoming all rain after 1pm. High near 40. South wind 6 to 9 mph becoming west in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Tonight

Rain. Low around 35. West wind 6 to 11 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Monday

Rain. The rain could be heavy at times. High near 44. Southwest wind 3 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Monday Night

Rain. The rain could be heavy at times. Low around 32. West wind 9 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Tuesday

Rain, possibly mixed with snow, becoming all rain after 1pm. High near 37. West wind around 6 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Tuesday Night

Rain, possibly mixed with snow, becoming all rain after 1am. The rain could be heavy at times. Low around 33. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday

Rain, possibly mixed with snow. High near 40. Chance of precipitation is 90%. Little or no snow accumulation expected.

Wednesday Night

Rain and snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 70%.

Thursday

Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 38. Chance of precipitation is 60%.

Thursday Night

Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 33.

Friday

Rain and snow likely. Mostly cloudy, with a high near 40.

Friday Night

Rain likely. Mostly cloudy, with a low around 35.