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.

Clear

64°F

18°C

Humidity 67%
Wind Speed NW 3 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 19 Sep 04:20 PM PDT
Extended Forecast for

Downtown Seattle WA

  • Tonight

    Tonight: Mostly clear, with a low around 54. Light and variable wind.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 72. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 72 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54. North northwest wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 71. Light north northwest wind.

    High: 71 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. Light north northeast wind.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 69.

    High: 69 °F

    Mostly Cloudy

  • Tuesday Night

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

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 66.

    High: 66 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 54. Light and variable wind.
Sunday
Mostly sunny, with a high near 72. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 54. North northwest wind around 5 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 71. Light north northwest wind.
Monday Night
Partly cloudy, with a low around 55. Light north northeast wind.
Tuesday
Mostly cloudy, with a high near 69.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Mostly cloudy, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly cloudy, with a high near 63.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 53.
Friday
A slight chance of rain. Mostly cloudy, with a high near 62.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Partly sunny, with a high near 64.
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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:
12:55 pm PDT Sep 19, 2026
Forecast Valid:
4pm PDT Sep 19, 2026-6pm PDT Sep 26, 2026
 
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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