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

Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Seattle, Seattle-Tacoma International Airport (KSEA)

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

Partly Cloudy

57°F

14°C

Humidity 54%
Wind Speed W 4 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 18 Apr 11:20 AM PDT
Extended Forecast for

Seatac WA

  • Today

    Today: Mostly sunny, with a high near 67. Light west northwest wind.

    High: 67 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 47. Light northeast wind.

    Low: 47 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 72. North northeast wind 5 to 8 mph.

    High: 72 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 50. North northeast wind 3 to 7 mph.

    Low: 50 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 72. North northwest wind 3 to 5 mph.

    High: 72 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of rain. Mostly cloudy, with a high near 63.

    High: 63 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain. Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance Rain

Detailed Forecast

Today
Mostly sunny, with a high near 67. Light west northwest wind.
Tonight
Partly cloudy, with a low around 47. Light northeast wind.
Sunday
Partly sunny, with a high near 72. North northeast wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 50. North northeast wind 3 to 7 mph.
Monday
Partly sunny, with a high near 72. North northwest wind 3 to 5 mph.
Monday Night
Mostly cloudy, with a low around 50.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a high near 63.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 49.
Wednesday
A chance of rain. Mostly cloudy, with a high near 56.
Wednesday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 46.
Thursday
Partly sunny, with a high near 62.
Thursday Night
Mostly clear, with a low around 44.
Friday
Mostly sunny, with a high near 66.
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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:
11:26 am PDT Apr 18, 2026
Forecast Valid:
11am PDT Apr 18, 2026-6pm PDT Apr 24, 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