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 West Coast through 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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3 Miles NW Sammamish WA

7 Day Forecast

For More Weather Information:

Seattle, WA Local Forecast Office

Tonight

Rain Chance for Measurable Precipitation 90%

Rain

Low: 49 °F

Sunday

Rain Chance for Measurable Precipitation 90%

Rain

High: 52 °F

Sunday
Night

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

Low: 45 °F

Monday

Slight Chance Rain Chance for Measurable Precipitation 20%

Slight Chc
Rain

High: 48 °F

Monday
Night

Chance Rain Chance for Measurable Precipitation 30%

Chance
Rain

Low: 43 °F

Tuesday

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

High: 49 °F

Tuesday
Night

Rain Likely Chance for Measurable Precipitation 70%

Rain
Likely

Low: 40 °F

Wednesday

Chance Showers

Chance
Showers

High: 44 °F

Wednesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 37 °F

Detailed Forecast

  • Tonight Rain. Low around 49. Breezy, with a southwest wind 20 to 23 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
  • Sunday Rain. High near 52. West southwest wind 16 to 20 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
  • Sunday Night A 50 percent chance of rain. Cloudy, with a low around 45. West southwest wind 9 to 16 mph.
  • Monday A 20 percent chance of rain. Mostly cloudy, with a high near 48. South southwest wind 5 to 9 mph becoming calm in the afternoon.
  • Monday Night A 30 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 43. Southeast wind around 5 mph becoming calm after midnight.
  • Tuesday A 50 percent chance of rain. Cloudy, with a high near 49.
  • Tuesday Night Rain likely. Cloudy, with a low around 40. Chance of precipitation is 70%.
  • Wednesday A chance of showers. Cloudy, with a high near 44.
  • Wednesday Night Mostly cloudy, with a low around 37.
  • Christmas Day Mostly cloudy, with a high near 43.
  • Thursday Night Mostly cloudy, with a low around 34.
  • Friday Partly sunny, with a high near 40.
  • Friday Night Mostly cloudy, with a low around 35.
  • Saturday A chance of rain. Partly sunny, with a high near 42.