Extreme Heat in the Southwest; Severe Weather in the Northern Plains; Heavy Rain in the East

Extreme heat continues across the Southwest as temperatures may top 120 degrees. The heat may expand across the West and south-central U.S. into the middle of the month. Severe thunderstorms capable of severe wind gusts and large hail will be the primary hazards today across the northern Plains into the upper Midwest. Rainfall could be locally heavy across the Eastern U.S. today. Read More >

Hazardous Weather Conditions

Current conditions at

Boeing Field - King County International Airport (KBFI)

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

smoke

72°F

22°C

Humidity 53%
Wind Speed WNW 5 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 03 Aug 07:35 PM PDT
Extended Forecast for

Mercer Island WA

  • Tonight

    Tonight: Clear, with a low around 57. Northeast wind 6 to 8 mph.

    Low: 57 °F

    Clear

  • Tuesday

    Tuesday: Patchy smoke after 9am. Sunny, with a high near 81. North wind 5 to 9 mph.

    High: 81 °F

    Patchy Smoke

  • Tuesday Night

    Tuesday Night: Patchy smoke after midnight. Mostly clear, with a low around 59. Northeast wind 3 to 8 mph.

    Low: 59 °F

    Mostly Clear
    then Patchy
    Smoke

  • Wednesday

    Wednesday: Sunny, with a high near 86. North northwest wind 3 to 7 mph.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. North northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Friday Night

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

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 57. Northeast wind 6 to 8 mph.
Tuesday
Patchy smoke after 9am. Sunny, with a high near 81. North wind 5 to 9 mph.
Tuesday Night
Patchy smoke after midnight. Mostly clear, with a low around 59. Northeast wind 3 to 8 mph.
Wednesday
Sunny, with a high near 86. North northwest wind 3 to 7 mph.
Wednesday Night
Mostly clear, with a low around 61. North northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 59.
Monday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.58°N 122.25°W (Elev. 105 ft)
11:26 am PDT Aug 3, 2026
7pm PDT Aug 3, 2026-6pm PDT Aug 10, 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