Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

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

Clear

57°F

14°C

Humidity 82%
Wind Speed NE 3 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 21 Sep 08:20 AM PDT
Extended Forecast for

South Seattle WA

  • Today

    Today: Partly sunny, with a high near 71. Calm wind.

    High: 71 °F

    Partly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 56. Calm wind.

    Low: 56 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 20 percent chance of rain before 8am.  Cloudy, then gradually becoming mostly sunny, with a high near 69. Light and variable wind.

    High: 69 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 54. Calm wind becoming south around 6 mph after midnight.

    Low: 54 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 68. West southwest wind 3 to 5 mph.

    High: 68 °F

    Partly Sunny

  • Wednesday Night

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

    Low: 53 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain after 11am.  Cloudy, with a high near 63.

    High: 63 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely.  Cloudy, with a low around 53.

    Low: 53 °F

    Rain Likely

  • Friday

    Friday: A chance of rain.  Mostly cloudy, with a high near 64.

    High: 64 °F

    Chance Rain

Detailed Forecast

Today
Partly sunny, with a high near 71. Calm wind.
Tonight
Increasing clouds, with a low around 56. Calm wind.
Tuesday
A 20 percent chance of rain before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 69. Light and variable wind.
Tuesday Night
Mostly cloudy, with a low around 54. Calm wind becoming south around 6 mph after midnight.
Wednesday
Partly sunny, with a high near 68. West southwest wind 3 to 5 mph.
Wednesday Night
Mostly cloudy, with a low around 53.
Thursday
A 30 percent chance of rain after 11am. Cloudy, with a high near 63.
Thursday Night
Rain likely. Cloudy, with a low around 53.
Friday
A chance of rain. Mostly cloudy, with a high near 64.
Friday Night
A chance of rain before 11pm. Mostly cloudy, with a low around 51.
Saturday
Partly sunny, with a high near 63.
Saturday Night
Mostly cloudy, with a low around 50.
Sunday
A slight chance of rain. Partly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
South Seattle WA
 47.55°N 122.3°W (Elev. 200 ft)
12:30 am PDT Sep 21, 2026
8am PDT Sep 21, 2026-6pm PDT Sep 27, 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