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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

Lat: 47.54548°NLon: 122.3147°WElev: 20.0ft.

Mostly Cloudy

52°F

11°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 50°F (10°C)
Visibility 9.00 mi
Last update 20 Sep 06:53 AM PDT
Extended Forecast for

Downtown Seattle WA

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 70. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 70 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 53. North wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, with a high near 71. Light and variable wind.

    High: 71 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Increasing clouds, with a low around 55. Light and variable wind.

    Low: 55 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 68. Light and variable wind.

    High: 68 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 67.

    High: 67 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 70. Calm wind becoming north northwest around 6 mph in the afternoon.
Tonight
Increasing clouds, with a low around 53. North wind around 5 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 71. Light and variable wind.
Monday Night
Increasing clouds, with a low around 55. Light and variable wind.
Tuesday
Mostly cloudy, with a high near 68. Light and variable wind.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
Mostly cloudy, with a high near 67.
Wednesday Night
Mostly cloudy, with a low around 53.
Thursday
Mostly cloudy, with a high near 63.
Thursday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 53.
Friday
A chance of rain. Mostly cloudy, with a high near 62.
Friday Night
A chance of rain. Mostly cloudy, with a low around 51.
Saturday
Partly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Downtown Seattle WA
 47.61°N 122.32°W (Elev. 240 ft)
Last Update:
12:25 am PDT Sep 20, 2026
Forecast Valid:
7am PDT Sep 20, 2026-6pm PDT Sep 26, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation