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.

Overcast

55°F

13°C

Humidity 93%
Wind Speed SE 3 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 54°F (12°C)
Visibility 8.00 mi
Last update 19 Sep 09:20 AM PDT
Extended Forecast for

2 Miles SE South Seattle WA

  • Today

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

    High: 73 °F

    Decreasing
    Clouds

  • Tonight

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

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 74. Calm wind becoming north around 5 mph in the afternoon.

    High: 74 °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. Light and variable wind.

    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 70.

    High: 70 °F

    Partly Sunny

  • Tuesday Night

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

    Low: 53 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 73. Calm wind.
Tonight
Mostly clear, with a low around 54. Calm wind.
Sunday
Mostly sunny, with a high near 74. 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. Light and variable wind.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Partly sunny, with a high near 70.
Tuesday Night
Mostly cloudy, with a low around 53.
Wednesday
Partly sunny, with a high near 69.
Wednesday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 54.
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 SE South Seattle WA
 47.53°N 122.26°W (Elev. 7 ft)
Last Update:
12:25 am PDT Sep 19, 2026
Forecast Valid:
9am PDT Sep 19, 2026-6pm PDT Sep 25, 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