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

Heat And Possible Flooding To Start Off The Week

Dangerous heat will impact portions of the Northwest, Northeast, and Mid to Lower Mississippi Valley today. Heat advisories are in effect for these major metro areas: Boston, New York City, Philadelphia, Seattle and St. Louis. A few flash flood concerns today from heavy rain and storms in the Four Corners region, northern New England and the western Ohio Valley into the Mid Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Seattle, Seattle-Tacoma International Airport (KSEA)

Lat: 47.44472°NLon: 122.31361°WElev: 427ft.

Partly Cloudy

86°F

30°C

Humidity 32%
Wind Speed NW 10 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 08 Aug 05:53 PM PDT
Extended Forecast for

Seatac WA

Heat Advisory until August 8, 09:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory until August 8, 09:00pm

    NOW until
    9:00pm Mon

    Heat Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 60. Calm wind becoming southwest 5 to 7 mph after midnight.

    Mostly Clear

    Low: 60 °F

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 83. North northwest wind around 6 mph.

    Gradual
    Clearing

    High: 83 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 62. North northwest wind around 6 mph becoming south southwest after midnight.

    Partly Cloudy

    Low: 62 °F

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms before 11am. Partly sunny, with a high near 72. South southwest wind 6 to 10 mph.

    Chance
    Showers then
    Partly Sunny

    High: 72 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 57. Southwest wind 5 to 10 mph.

    Mostly Clear

    Low: 57 °F

  • Thursday

    Thursday: Sunny, with a high near 80.

    Sunny

    High: 80 °F

  • Thursday
    Night

    Thursday Night: Clear, with a low around 58.

    Clear

    Low: 58 °F

  • Friday

    Friday: Sunny, with a high near 81.

    Sunny

    High: 81 °F

Detailed Forecast

Tonight
Mostly clear, with a low around 60. Calm wind becoming southwest 5 to 7 mph after midnight.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 83. North northwest wind around 6 mph.
Tuesday Night
Partly cloudy, with a low around 62. North northwest wind around 6 mph becoming south southwest after midnight.
Wednesday
A 30 percent chance of showers and thunderstorms before 11am. Partly sunny, with a high near 72. South southwest wind 6 to 10 mph.
Wednesday Night
Mostly clear, with a low around 57. Southwest wind 5 to 10 mph.
Thursday
Sunny, with a high near 80.
Thursday Night
Clear, with a low around 58.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 58.
Monday
Sunny, with a high near 81.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Seatac WA
 47.42°N 122.29°W (Elev. 390 ft)
Last Update:
3:41 pm PDT Aug 8, 2022
Forecast Valid:
6pm PDT Aug 8, 2022-6pm PDT Aug 15, 2022
 
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