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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Seattle, Seattle-Tacoma International Airport (KSEA)

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

Clear

61°F

16°C

Humidity 77%
Wind Speed S 3 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 28 Aug 12:35 AM PDT
Extended Forecast for

Seattle-Tacoma International Airport WA

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 60. South wind 3 to 5 mph.

    Low: 60 °F

    Mostly Cloudy

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 72. Southwest wind around 6 mph.

    High: 72 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Rain likely, mainly after 4am. Increasing clouds, with a low around 55. North northwest wind 5 to 8 mph becoming south southeast after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Slight Chance
    Rain then
    Rain Likely

  • Saturday

    Saturday: Rain likely before 11am, then a chance of showers and thunderstorms, mainly between 11am and 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 69. West southwest wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 69 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 53. South wind 5 to 8 mph.

    Low: 53 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 60. South wind 3 to 5 mph.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 72. Southwest wind around 6 mph.
Friday Night
Rain likely, mainly after 4am. Increasing clouds, with a low around 55. North northwest wind 5 to 8 mph becoming south southeast after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain likely before 11am, then a chance of showers and thunderstorms, mainly between 11am and 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 69. West southwest wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 53. South wind 5 to 8 mph.
Sunday
Partly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 53.
Monday
Partly sunny, with a high near 72.
Monday Night
Mostly cloudy, with a low around 55.
Tuesday
A slight chance of rain after 11am. Partly sunny, with a high near 70.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 55.
Wednesday
Rain likely. Mostly cloudy, with a high near 64.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 53.
Thursday
A chance of rain. Partly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Seattle-Tacoma International Airport WA
 47.46°N 122.31°W (Elev. 400 ft)
Last Update:
11:26 pm PDT Aug 27, 2026
Forecast Valid:
12am PDT Aug 28, 2026-6pm PDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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