Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Seattle, Seattle-Tacoma International Airport (KSEA)

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

Clear

68°F

20°C

Humidity 64%
Wind Speed N 0 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 Aug 11:00 PM PDT
Extended Forecast for

Seattle-Tacoma International Airport WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. Light and variable wind becoming south southwest around 6 mph after midnight.

    Low: 58 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 78. Southwest wind around 7 mph.

    High: 78 °F

    Gradual
    Clearing

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 57. West southwest wind 6 to 8 mph.

    Low: 57 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 77. South southwest wind around 6 mph.

    High: 77 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57. North northwest wind 3 to 6 mph.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 80.

    High: 80 °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

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 58. Light and variable wind becoming south southwest around 6 mph after midnight.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 78. Southwest wind around 7 mph.
Tuesday Night
Increasing clouds, with a low around 57. West southwest wind 6 to 8 mph.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 77. South southwest wind around 6 mph.
Wednesday Night
Partly cloudy, with a low around 57. North northwest wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 80.
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 58.
Saturday
A slight chance of rain. Mostly cloudy, with a high near 72.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 57.
Sunday
Partly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Seattle-Tacoma International Airport WA
 47.46°N 122.31°W (Elev. 400 ft)
11:26 am PDT Aug 17, 2026
11pm PDT Aug 17, 2026-6pm PDT Aug 24, 2026
 
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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