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

61°F

16°C

Humidity 77%
Wind Speed N 0 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 18 Sep 11:20 PM PDT
Extended Forecast for

2 Miles ESE South Seattle WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 73. Calm wind.

    High: 73 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. Light north northwest wind.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 73. Calm wind becoming north around 5 mph in the afternoon.

    High: 73 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Monday Night

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

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Tuesday Night

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

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 55. Calm wind.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 73. Calm wind.
Saturday Night
Mostly clear, with a low around 55. Light north northwest wind.
Sunday
Mostly sunny, with a high near 73. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 54. North wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Partly sunny, with a high near 69.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
Partly sunny, with a high near 69.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 55.
Thursday
Mostly cloudy, with a high near 66.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 53.
Friday
A slight chance of rain. Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE South Seattle WA
 47.55°N 122.27°W (Elev. 200 ft)
Last Update:
11:26 pm PDT Sep 18, 2026
Forecast Valid:
11pm PDT Sep 18, 2026-6pm PDT Sep 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation