Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Seattle, Seattle-Tacoma International Airport (KSEA)

Lat: 47.44472°NLon: 122.31361°WElev: 427.0ft.

freezing fog

31°F

-1°C

Humidity 100%
Wind Speed NNE 8 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 31°F (-1°C)
Visibility 0.50 mi
Wind Chill24°F (-4°C)
Last update 19 Jan 07:53 AM PST
Extended Forecast for

Seatac WA

  • M.L.King Day

    M.L.King Day: Patchy dense fog before 9am.  Otherwise, sunny, with a high near 50. Light north wind.

    High: 50 °F

    Patchy Dense
    Fog then
    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 48. Light north wind.

    High: 48 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 33. Light east northeast wind.

    Low: 33 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46. Calm wind.

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

Detailed Forecast

M.L.King Day
Patchy dense fog before 9am. Otherwise, sunny, with a high near 50. Light north wind.
Tonight
Mostly cloudy, with a low around 35. Calm wind.
Tuesday
Partly sunny, with a high near 48. Light north wind.
Tuesday Night
Partly cloudy, with a low around 33. Light east northeast wind.
Wednesday
Mostly sunny, with a high near 46. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Partly sunny, with a high near 45.
Thursday Night
Partly cloudy, with a low around 35.
Friday
Mostly sunny, with a high near 46.
Friday Night
A slight chance of rain after 10pm. Partly cloudy, with a low around 35.
Saturday
A slight chance of rain and snow. Partly sunny, with a high near 46.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 37.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
Seatac WA
 47.44°N 122.3°W (Elev. 358 ft)
7:01 am PST Jan 19, 2026
8am PST Jan 19, 2026-6pm PST Jan 25, 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