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.

Clear

43°F

6°C

Humidity 70%
Wind Speed N 4 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 18 Jan 07:35 PM PST
Extended Forecast for

Seattle-Tacoma International Airport WA

  • Tonight

    Tonight: Areas of dense fog after 4am.  Otherwise, mostly clear, with a low around 33. North northeast wind around 5 mph.

    Low: 33 °F

    Mostly Clear
    then Areas
    Dense Fog

  • M.L.King Day

    M.L.King Day: Areas of dense fog before 10am.  Otherwise, sunny, with a high near 49. North wind around 5 mph.

    High: 49 °F

    Areas Dense
    Fog then
    Sunny

  • Monday Night

    Monday Night: Areas of dense fog after 4am.  Otherwise, partly cloudy, with a low around 33. North northeast wind around 5 mph becoming calm  in the evening.

    Low: 33 °F

    Partly Cloudy
    then Areas
    Dense Fog

  • Tuesday

    Tuesday: Areas of dense fog before 10am.  Otherwise, partly sunny, with a high near 47. North northeast wind around 6 mph.

    High: 47 °F

    Areas Dense
    Fog then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Areas of dense fog after 5am.  Otherwise, partly cloudy, with a low around 33. East northeast wind around 5 mph.

    Low: 33 °F

    Partly Cloudy
    then Areas
    Dense Fog

  • Wednesday

    Wednesday: Areas of dense fog before 10am.  Otherwise, partly sunny, with a high near 47.

    High: 47 °F

    Areas Dense
    Fog then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A slight chance of rain before 4am, then a chance of rain and snow.  Mostly cloudy, with a low around 38.

    Low: 38 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

Detailed Forecast

Tonight
Areas of dense fog after 4am. Otherwise, mostly clear, with a low around 33. North northeast wind around 5 mph.
M.L.King Day
Areas of dense fog before 10am. Otherwise, sunny, with a high near 49. North wind around 5 mph.
Monday Night
Areas of dense fog after 4am. Otherwise, partly cloudy, with a low around 33. North northeast wind around 5 mph becoming calm in the evening.
Tuesday
Areas of dense fog before 10am. Otherwise, partly sunny, with a high near 47. North northeast wind around 6 mph.
Tuesday Night
Areas of dense fog after 5am. Otherwise, partly cloudy, with a low around 33. East northeast wind around 5 mph.
Wednesday
Areas of dense fog before 10am. Otherwise, partly sunny, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 35.
Thursday
Mostly cloudy, with a high near 47.
Thursday Night
A slight chance of rain before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 38.
Friday
A chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 46.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 37.
Saturday
A chance of rain and snow. Partly sunny, with a high near 46.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 38.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
Seattle-Tacoma International Airport WA
 47.46°N 122.31°W (Elev. 400 ft)
7:01 pm PST Jan 18, 2026
7pm PST Jan 18, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database