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

Heavy Rainfall Continues in Hawaii; Severe Thunderstorms and Heavy Rainfall in the Plains and Southern Appalachians

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorms and heavy rainfall will shift into the southern Appalachians today. Strong to severe thunderstorms may produce large hail, scattered wind gusts, and heavy rain today across the northern and central Plains. Read More >

Current conditions at

Seattle, Seattle-Tacoma International Airport (KSEA)

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

Partly Cloudy

74°F

23°C

Humidity 53%
Wind Speed WNW 9 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 17 Aug 01:53 PM PDT
Extended Forecast for

Seatac WA

  • This Afternoon

    This Afternoon: Sunny, with a high near 79. North northwest wind around 6 mph.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 57. North wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 78. Southwest wind around 6 mph.

    High: 78 °F

    Gradual
    Clearing

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 57. West southwest wind around 6 mph.

    Low: 57 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 77. West wind around 5 mph.

    High: 77 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 79. North northwest wind around 6 mph.
Tonight
Increasing clouds, with a low around 57. North wind around 5 mph becoming calm in the evening.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 78. Southwest wind around 6 mph.
Tuesday Night
Increasing clouds, with a low around 57. West southwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 77. West wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Partly sunny, with a high near 78.
Friday Night
Mostly cloudy, with a low around 57.
Saturday
A slight chance of rain. Mostly cloudy, with a high near 71.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 56.
Sunday
Mostly cloudy, with a high near 74.
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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 Aug 17, 2026
Forecast Valid:
2pm PDT Aug 17, 2026-6pm PDT Aug 23, 2026
 
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Additional Resources

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Chance of Precipitation