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.

light rain,fog

36°F

2°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	29.9 in (1012.53 mb)
Dewpoint	36°F (2°C)
Visibility	0.25 mi
Last update	07 Dec 01:05 PM PST

More Information:

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

Extended Forecast for

6 Miles E Snoqualmie Pass WA

This Afternoon
High: 42 °F
Rain
Tonight
Low: 36 °F
Rain/Snow
Monday
High: 46 °F
Heavy Rain
Monday Night
Low: 34 °F
Rain/Snow
Tuesday
High: 39 °F
Rain/Snow
Tuesday Night
Low: 35 °F
Rain/Snow
then Heavy
Rain
Wednesday
High: 44 °F
Heavy Rain
Wednesday Night
Low: 36 °F
Heavy Rain
then
Rain/Snow
Likely
Thursday
High: 42 °F
Rain/Snow
Likely

Detailed Forecast

This Afternoon

Rain. High near 42. West wind around 9 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Tonight

Rain, possibly mixed with snow, mainly before 4am. Low around 36. West wind 7 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Monday

Rain, mainly after 7am. The rain could be heavy at times. High near 46. Southwest wind 5 to 9 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Monday Night

Rain, possibly mixed with snow before 1am, then rain between 1am and 4am, then rain and snow after 4am. The rain could be heavy at times. Low around 34. West wind 13 to 15 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Tuesday

Rain, possibly mixed with snow. High near 39. West wind 3 to 7 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Tuesday Night

Rain, possibly mixed with snow, becoming all rain after 10pm. The rain could be heavy at times. Low around 35. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday

Rain. The rain could be heavy at times. High near 44. Chance of precipitation is 100%.

Wednesday Night

Rain before 1am, then rain likely, possibly mixed with snow. The rain could be heavy at times. Low around 36. Chance of precipitation is 80%.

Thursday

Rain likely, possibly mixed with snow, becoming all rain after 1pm. Mostly cloudy, with a high near 42. Chance of precipitation is 70%.

Thursday Night

Rain likely. Mostly cloudy, with a low around 38.

Friday

A chance of rain. Mostly cloudy, with a high near 46.

Friday Night

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