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Severe Thunderstorm and Tropical Storm Bertha Impacts

Numerous severe thunderstorms are expected across a broad region from the Ohio Valley to the Mid-Atlantic and Northeast States today into tonight. Swaths of damaging wind gusts are expected and some tornadoes are possible. Bertha is expected to bring tropical storm conditions to portions of the Gulf Coast from the Florida Panhandle westward to southeastern Louisiana later today and Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Boeing Field - King County International Airport (KBFI)

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

Clear

82°F

28°C

Humidity 42%
Wind Speed NNW 4 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 21 Jul 12:53 PM PDT
Extended Forecast for

2 Miles SSW South Seattle WA

Heat Advisory until July 22, 11:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until July 22, 11:00pm

    NOW until 11:00pm Wed

    Heat Advisory

  • This Afternoon

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 67. North northwest wind around 6 mph becoming calm after midnight.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 95. Calm wind becoming northwest 5 to 8 mph in the morning.

    High: 95 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 67. Light and variable wind becoming south southwest 5 to 8 mph after midnight.

    Low: 67 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of rain before 11am. Mostly sunny, with a high near 83. Southwest wind around 9 mph.

    High: 83 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 93. North northwest wind around 7 mph.
Tonight
Mostly clear, with a low around 67. North northwest wind around 6 mph becoming calm after midnight.
Wednesday
Increasing clouds, with a high near 95. Calm wind becoming northwest 5 to 8 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 67. Light and variable wind becoming south southwest 5 to 8 mph after midnight.
Thursday
A 20 percent chance of rain before 11am. Mostly sunny, with a high near 83. Southwest wind around 9 mph.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 60.
Saturday
Partly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
Partly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 59.
Monday
Mostly sunny, with a high near 76.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW South Seattle WA
 47.53°N 122.3°W (Elev. 184 ft)
Last Update:
12:40 pm PDT Jul 21, 2026
Forecast Valid:
1pm PDT Jul 21, 2026-6pm PDT Jul 27, 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