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,mist

37°F

3°C

Humidity	100%
Wind Speed	W 10 MPH
Barometer	30.06 in (1017.95 mb)
Dewpoint	37°F (3°C)
Visibility	1.75 mi
Wind Chill	30°F (-1°C)
Last update	07 Dec 09:56 PM PST

More Information:

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

Extended Forecast for

4 Miles S Snoqualmie Pass WA

Tonight
Low: 37 °F
Rain/Snow
Likely
Monday
High: 44 °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: 42 °F
Heavy Rain
Wednesday Night
Low: 36 °F
Heavy Rain
then
Rain/Snow
Likely
Thursday
High: 41 °F
Rain/Snow
Likely then
Rain Likely
Thursday Night
Low: 38 °F
Rain Likely

Detailed Forecast

Tonight

Rain likely, possibly mixed with snow, mainly before 4am. Mostly cloudy, with a low around 37. West wind 6 to 8 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Monday

Rain, mainly after 7am. The rain could be heavy at times. High near 44. Light southwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Monday Night

Rain before 10pm, then rain, possibly mixed with snow between 10pm and 1am, then rain after 1am. The rain could be heavy at times. Low around 34. West wind around 15 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Tuesday

Rain and snow before 1pm, then rain between 1pm and 4pm, then rain, possibly mixed with snow after 4pm. High near 39. West wind 3 to 7 mph. Winds could gust as high as 18 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. South wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday

Rain. The rain could be heavy at times. High near 42. Chance of precipitation is 100%.

Wednesday Night

Rain before 1am, then rain likely, possibly mixed with snow between 1am and 4am, then rain likely after 4am. The rain could be heavy at times. Low around 36. Chance of precipitation is 80%. Little or no snow accumulation expected.

Thursday

Rain likely before 7am, then rain likely, possibly mixed with snow between 7am and 10am, then rain likely after 10am. Mostly cloudy, with a high near 41. Chance of precipitation is 70%.

Thursday Night

Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.

Friday

Rain likely, mainly before 10am. Mostly cloudy, with a high near 44.

Friday Night

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

Saturday

Rain likely. Partly sunny, with a high near 43.

Saturday Night

Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 36.

Sunday

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