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

Excessive Rainfall and Significant Flooding in the Upper Midwest This Weekend

Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. Read More >

Current conditions at

Seattle, Seattle-Tacoma International Airport (KSEA)

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

Clear

70°F

21°C

Humidity 52%
Wind Speed W 8 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 08 Aug 12:35 PM PDT
Extended Forecast for

Seatac WA

  • This Afternoon

    This Afternoon: Sunny, with a high near 76. Northwest wind around 7 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 57. North northeast wind 3 to 7 mph.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 78. North wind 5 to 9 mph.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60. North northeast wind 7 to 11 mph.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. North wind 6 to 13 mph.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 76. Northwest wind around 7 mph.
Tonight
Partly cloudy, with a low around 57. North northeast wind 3 to 7 mph.
Saturday
Mostly sunny, with a high near 78. North wind 5 to 9 mph.
Saturday Night
Mostly clear, with a low around 60. North northeast wind 7 to 11 mph.
Sunday
Sunny, with a high near 83. North wind 6 to 13 mph.
Sunday Night
Clear, with a low around 62.
Monday
Sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Partly sunny, with a high near 76.
Wednesday Night
Mostly cloudy, with a low around 59.
Thursday
Mostly cloudy, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Seatac WA
 47.46°N 122.31°W (Elev. 400 ft)
Last Update:
8:00 am PDT Aug 8, 2025
Forecast Valid:
12pm PDT Aug 8, 2025-6pm PDT Aug 14, 2025
 
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