National Weather Service United States Department of Commerce

Heavy rain and mountain snow across the northwestern U.S. this weekend

A Pacific storm system will continue to impact the Pacific Northwest through late Sunday. Heavy rainfall could lead to flash flooding, river and small stream flooding, as well as mudslides and debris flows, especially over burn scars. At higher elevations, strong winds and heavy snowfall, with accumulations of 1 to 3 feet, could result in hazardous travel through mountain passes.
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Current Conditions

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6 Miles W Snoqualmie Pass WA

7 Day Forecast

For More Weather Information:

Seattle, WA Local Forecast Office

Today

Rain/Snow Chance for Measurable Precipitation 100%

Rain/Snow

High: 33 °F

Tonight

Snow Chance for Measurable Precipitation 90%

Snow

Low: 31 °F

Monday

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

High: 34 °F

Monday
Night

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

Low: 33 °F

Tuesday

Chance Rain/Snow Chance for Measurable Precipitation 50%

Chance
Rain/Snow

High: 38 °F

Tuesday
Night

Rain/Snow Chance for Measurable Precipitation 80%

Rain/Snow

Low: 28 °F

Wednesday

Snow Chance for Measurable Precipitation 80%

Snow

High: 31 °F

Wednesday
Night

Chance Snow

Chance
Snow

Low: 25 °F

Christmas
Day

Chance Snow

Chance
Snow

High: 27 °F

Detailed Forecast

  • Today Rain and snow, becoming all snow after 10am. High near 33. Breezy, with a west southwest wind 15 to 23 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 3 to 5 inches possible.
  • Tonight Snow, mainly before 4am. Low around 31. West southwest wind 14 to 17 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
  • Monday A 50 percent chance of snow before 10am. Partly sunny, with a high near 34. West northwest wind 3 to 8 mph. New snow accumulation of less than one inch possible.
  • Monday Night A chance of snow after 4am. Mostly cloudy, with a low around 33. East wind 7 to 13 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
  • Tuesday A chance of rain and snow before 10am, then a chance of rain. Cloudy, with a high near 38. East wind 9 to 14 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
  • Tuesday Night Rain before 10pm, then rain and snow. Low around 28. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
  • Wednesday Snow. High near 31. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
  • Wednesday Night A chance of snow showers. Mostly cloudy, with a low around 25.
  • Christmas Day A chance of snow showers. Mostly cloudy, with a high near 27.
  • Thursday Night Mostly cloudy, with a low around 24.
  • Friday Partly sunny, with a high near 28.
  • Friday Night A chance of snow. Mostly cloudy, with a low around 25.
  • Saturday A chance of snow. Partly sunny, with a high near 28.