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 75%
Wind Speed NNE 9 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 18 Jan 08:35 PM PST
Extended Forecast for

2 Miles SSE Seatac WA

  • Tonight

    Tonight: Areas of dense fog after 4am.  Otherwise, mostly clear, with a low around 31. Light north northeast wind.

    Low: 31 °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. Light north northeast wind.

    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. Calm wind.

    Low: 33 °F

    Partly Cloudy
    then Areas
    Dense Fog

  • Tuesday

    Tuesday: Areas of dense fog before 10am.  Otherwise, partly sunny, with a high near 48. Light north northeast wind.

    High: 48 °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. Calm wind.

    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 46.

    High: 46 °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 31. Light north northeast wind.
M.L.King Day
Areas of dense fog before 10am. Otherwise, sunny, with a high near 49. Light north northeast wind.
Monday Night
Areas of dense fog after 4am. Otherwise, partly cloudy, with a low around 33. Calm wind.
Tuesday
Areas of dense fog before 10am. Otherwise, partly sunny, with a high near 48. Light north northeast wind.
Tuesday Night
Areas of dense fog after 5am. Otherwise, partly cloudy, with a low around 33. Calm wind.
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 46.
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 45.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 37.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Seatac WA
 47.42°N 122.29°W (Elev. 390 ft)
7:01 pm PST Jan 18, 2026
8pm PST Jan 18, 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