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

59°F

15°C

Humidity 82%
Wind Speed N 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 19 Sep 08:50 PM PDT
Extended Forecast for

2 Miles SW South Seattle WA

  • Tonight

    Tonight: Mostly clear, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 73. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 73 °F

    Patchy Fog
    then Sunny

  • Sunday Night

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

    Low: 53 °F

    Increasing
    Clouds

  • Monday

    Monday: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 73. Light northwest wind.

    High: 73 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Monday Night

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

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 71.

    High: 71 °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 68.

    High: 68 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 54. Calm wind.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 73. Calm wind becoming north northwest around 6 mph in the afternoon.
Sunday Night
Increasing clouds, with a low around 53. North wind around 5 mph becoming calm in the evening.
Monday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 73. Light northwest wind.
Monday Night
Partly cloudy, with a low around 55. Light northeast wind.
Tuesday
Mostly cloudy, with a high near 71.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
Mostly cloudy, with a high near 68.
Wednesday Night
Mostly cloudy, with a low around 52.
Thursday
Mostly cloudy, with a high near 66.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 52.
Friday
A chance of rain. Mostly cloudy, with a high near 64.
Friday Night
A chance of rain. Mostly cloudy, with a low around 51.
Saturday
Partly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW South Seattle WA
 47.54°N 122.33°W (Elev. 33 ft)
Last Update:
8:22 pm PDT Sep 19, 2026
Forecast Valid:
9pm PDT Sep 19, 2026-6pm PDT Sep 26, 2026
 
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