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

30°F

-1°C

Humidity 97%
Wind Speed NW 0 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 29°F (-2°C)
Visibility NA
Last update 21 Jan 07:30 AM PST
Extended Forecast for

Seattle-Ballard WA

  • Today

    Today: Mostly sunny, with a high near 48. Calm wind.

    High: 48 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 33. Calm wind.

    Low: 33 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 44. Calm wind.

    High: 44 °F

    Mostly Cloudy

  • Thursday Night

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

    Low: 33 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 45. Calm wind becoming north around 6 mph in the afternoon.

    High: 45 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 48. Calm wind.
Tonight
Increasing clouds, with a low around 33. Calm wind.
Thursday
Mostly cloudy, with a high near 44. Calm wind.
Thursday Night
Mostly cloudy, with a low around 33. Calm wind.
Friday
Sunny, with a high near 45. Calm wind becoming north around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 31.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Partly sunny, with a high near 45.
Sunday Night
A slight chance of rain before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 34.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 46.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 37.
Tuesday
A slight chance of rain. Mostly cloudy, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
Seattle-Ballard WA
 47.67°N 122.37°W (Elev. 75 ft)
7:01 am PST Jan 21, 2026
8am PST Jan 21, 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