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

Seattle, Seattle-Tacoma International Airport (KSEA)

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

Clear

23°C

73°F

Humidity 53%
Wind Speed WSW 5 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 13°C (55°F)
Visibility 16 km
Last update 18 Aug 08:00 PM PDT
Extended Forecast for

Seattle-Tacoma International Airport WA

  • Tonight

    Tonight: Partly cloudy, with a low around 14. South southwest wind 10 to 13 km/h.

    Low: 14 °C

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 25. South wind 8 to 10 km/h becoming northwest in the afternoon.

    High: 25 °C

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 14. North wind 8 to 10 km/h.

    Low: 14 °C

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 27. Light north wind becoming north northwest 8 to 13 km/h in the afternoon.

    High: 27 °C

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 15. North wind 8 to 13 km/h.

    Low: 15 °C

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 26.

    High: 26 °C

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain after 11pm. Partly cloudy, with a low around 14.

    Low: 14 °C

    Slight Chance
    Rain

  • Saturday

    Saturday: A chance of rain before 11am. Mostly cloudy, with a high near 22.

    High: 22 °C

    Chance Rain
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 14.

    Low: 14 °C

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 14. South southwest wind 10 to 13 km/h.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 25. South wind 8 to 10 km/h becoming northwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 14. North wind 8 to 10 km/h.
Thursday
Mostly sunny, with a high near 27. Light north wind becoming north northwest 8 to 13 km/h in the afternoon.
Thursday Night
Partly cloudy, with a low around 15. North wind 8 to 13 km/h.
Friday
Partly sunny, with a high near 26.
Friday Night
A 20 percent chance of rain after 11pm. Partly cloudy, with a low around 14.
Saturday
A chance of rain before 11am. Mostly cloudy, with a high near 22.
Saturday Night
Mostly cloudy, with a low around 14.
Sunday
Partly sunny, with a high near 23.
Sunday Night
Mostly clear, with a low around 13.
Monday
Mostly sunny, with a high near 25.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Partly sunny, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Seattle-Tacoma International Airport WA
 47.46°N 122.31°W (Elev. 400 m)
Last Update:
11:26 am PDT Aug 18, 2026
Forecast Valid:
8pm PDT Aug 18, 2026-6pm PDT Aug 25, 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