National Weather Service United States Department of Commerce

Arctic Air Will Move Into U.S. This Week

Arctic air will move back into the central Plains, Great Lake States and Western U.S. this week. Winter Storm Warnings, Winter Weather Advisories and Wind Chill Advisories are in effect in many areas. Recent heavy rains across the lower Mississippi and Tennessee Valleys will shift into the Carolinas Monday. Rivers that came up over the weekend will recede across portions of the South.
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Current Conditions

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6 Miles ENE Marblemount WA

7 Day Forecast

For More Weather Information:

Seattle, WA Local Forecast Office

This
Afternoon

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

High: 28 °FFalling Temperatures

Tonight

Snow Likely Chance for Measurable Precipitation 60%

Snow
Likely

Low: 16 °F

Monday

Becoming Sunny

Becoming
Sunny

High: 20 °FFalling Temperatures

Monday
Night

Clear

Clear

Low: 6 °F

Tuesday

Sunny

Sunny

High: 26 °F

Tuesday
Night

Mostly Clear

Mostly
Clear

Low: 18 °F

Wednesday

Sunny

Sunny

High: 32 °F

Wednesday
Night

Partly Cloudy

Partly
Cloudy

Low: 25 °F

New Year's
Day

Mostly Sunny

Mostly
Sunny

High: 29 °F

Detailed Forecast

  • This Afternoon Snow showers likely. Mostly cloudy, with a temperature falling to around 22 by 5pm. Southwest wind 3 to 6 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than one inch possible.
  • Tonight Snow showers likely, mainly before 10pm. Mostly cloudy, with a low around 16. Light and variable wind becoming north northeast 6 to 11 mph after midnight. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
  • Monday Partly sunny, then gradually becoming sunny, with a temperature rising to near 20 by noon, then falling to around 13 during the remainder of the day. Northeast wind around 14 mph.
  • Monday Night Clear, with a low around 6. East northeast wind around 15 mph.
  • Tuesday Sunny, with a high near 26. East northeast wind 11 to 14 mph.
  • Tuesday Night Mostly clear, with a low around 18.
  • Wednesday Sunny, with a high near 32.
  • Wednesday Night Partly cloudy, with a low around 25.
  • New Year's Day Mostly sunny, with a high near 29.
  • Thursday Night Mostly cloudy, with a low around 23.
  • Friday A chance of snow. Mostly cloudy, with a high near 28.
  • Friday Night A chance of snow. Mostly cloudy, with a low around 15.
  • Saturday A chance of snow. Mostly cloudy, with a high near 25.