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.

Overcast

35°F

2°C

Humidity 95%
Wind Speed N 6 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 34°F (1°C)
Visibility 9.00 mi
Wind Chill30°F (-1°C)
Last update 20 Jan 03:03 AM PST
Extended Forecast for

Seattle-Tacoma International Airport WA

  • Overnight

    Overnight: Patchy fog.  Otherwise, mostly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy dense fog before 9am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 48. North wind 5 to 7 mph.

    High: 48 °F

    Patchy Dense
    Fog then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 33. North northeast wind 3 to 5 mph.

    Low: 33 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 47. Light and variable wind.

    High: 47 °F

    Sunny

  • Wednesday Night

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

    Low: 33 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Thursday Night

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

    Low: 34 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 35. Calm wind.
Tuesday
Patchy dense fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 48. North wind 5 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 33. North northeast wind 3 to 5 mph.
Wednesday
Sunny, with a high near 47. Light and variable wind.
Wednesday Night
Partly cloudy, with a low around 33. Calm wind.
Thursday
Partly sunny, with a high near 44.
Thursday Night
Mostly cloudy, with a low around 34.
Friday
Mostly sunny, with a high near 46.
Friday Night
Partly cloudy, with a low around 32.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 34.
Sunday
A chance of rain. Mostly cloudy, with a high near 47.
Sunday Night
A chance of rain. Cloudy, with a low around 40.
Monday
A chance of rain. Mostly cloudy, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
Seattle-Tacoma International Airport WA
 47.46°N 122.31°W (Elev. 400 ft)
1:25 am PST Jan 20, 2026
3am PST Jan 20, 2026-6pm PST Jan 26, 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