Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

SEATTLE WEATHER FORECAST OFFICE (SEAW1)

Lat: 47.68528°NLon: 122.25111°WElev: 29.0ft.

NA

39°F

4°C

Humidity 93%
Wind Speed WNW 4 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 37°F (3°C)
Visibility NA
Wind Chill36°F (2°C)
Last update 20 Jan 09:30 PM PST
Extended Forecast for

Seattle WA

  • Tonight

    Tonight: Mostly clear, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. Calm wind.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 45. Calm wind.

    High: 45 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 34. Calm wind.
Wednesday
Mostly sunny, with a high near 47. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 33. Calm wind.
Thursday
Partly sunny, with a high near 45. Calm wind.
Thursday Night
Partly cloudy, with a low around 33. Calm wind.
Friday
Sunny, with a high near 47.
Friday Night
Mostly clear, with a low around 30.
Saturday
Sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
A slight chance of rain after 10am. Partly sunny, with a high near 46.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 37.
Monday
A chance of rain. Mostly cloudy, with a high near 48.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 39.
Tuesday
A slight chance of rain. Mostly cloudy, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
Seattle WA
 47.65°N 122.33°W (Elev. 3 ft)
7:01 pm PST Jan 20, 2026
10pm PST Jan 20, 2026-6pm PST Jan 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database