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

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Current conditions at

Seattle, Seattle-Tacoma International Airport (KSEA)

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

Clear

54°F

12°C

Humidity 81%
Wind Speed N 0 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 17 Jun 04:00 AM PDT
Extended Forecast for

Seatac WA

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 75. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 75 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. North northeast wind 5 to 8 mph.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. North wind 6 to 9 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. North northeast wind 5 to 9 mph.

    Low: 58 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 83. North northwest wind 3 to 7 mph.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 55.

    Low: 55 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 75. Calm wind becoming northwest around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 55. North northeast wind 5 to 8 mph.
Thursday
Sunny, with a high near 78. North wind 6 to 9 mph.
Thursday Night
Partly cloudy, with a low around 58. North northeast wind 5 to 9 mph.
Juneteenth
Mostly sunny, with a high near 83. North northwest wind 3 to 7 mph.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 76.
Saturday Night
Clear, with a low around 55.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 58.
Monday
Sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 62.
Tuesday
Mostly sunny, with a high near 88.
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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 pm PDT Jun 16, 2026
Forecast Valid:
4am PDT Jun 17, 2026-6pm PDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation