National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Above Average Temperatures for the West and Central Plains; Lake Effect Snow Continues

Well above average temperatures will prevail across the Plains and the West Coast this week, while a cold front will bring Arctic air to the South and East Coast Thursday and Friday. Lake effect snow is forecast downwind of the Great Lakes through Thursday along and behind the Arctic front, as well as mountain snow across the Southern Appalachians. Read More >

Current conditions at

Seattle, Seattle-Tacoma International Airport (KSEA)

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

Overcast

52°F

11°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.42 in (1030.14 mb)
Dewpoint 50°F (10°C)
Visibility 9.00 mi
Last update 13 Jan 07:53 PM PST
Extended Forecast for

Seatac WA

  • Tonight

    Tonight: Widespread dense fog, mainly between 9pm and midnight. Otherwise, mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Dense Fog

  • Wednesday

    Wednesday: Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 51. Light and variable wind.

    High: 51 °F

    Areas Fog
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Widespread dense fog before 3am, then patchy dense fog after 5am. Otherwise, mostly cloudy, with a low around 43. North northeast wind 3 to 5 mph.

    Low: 43 °F

    Dense Fog

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 50. North northeast wind 7 to 9 mph.

    High: 50 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 38. North northeast wind around 7 mph.

    Low: 38 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Tonight
Widespread dense fog, mainly between 9pm and midnight. Otherwise, mostly cloudy, with a low around 44. Calm wind.
Wednesday
Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 51. Light and variable wind.
Wednesday Night
Widespread dense fog before 3am, then patchy dense fog after 5am. Otherwise, mostly cloudy, with a low around 43. North northeast wind 3 to 5 mph.
Thursday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 50. North northeast wind 7 to 9 mph.
Thursday Night
Partly cloudy, with a low around 38. North northeast wind around 7 mph.
Friday
Sunny, with a high near 51.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 51.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 36.
M.L.King Day
Mostly sunny, with a high near 48.
Monday Night
Mostly cloudy, with a low around 37.
Tuesday
Mostly cloudy, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Seatac WA
 47.44°N 122.3°W (Elev. 358 ft)
Last Update:
7:01 pm PST Jan 13, 2026
Forecast Valid:
8pm PST Jan 13, 2026-6pm PST Jan 20, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation