Severe Thunderstorms and Heavy Rain in the Central Plains; Dry Thunderstorms and Critical Fire Weather in the West

Severe thunderstorms and heavy rain may produce large to very-large hail, severe winds, tornadoes and numerous instances of flash flooding across portions of the central Plains. Scattered slow-moving storms will continue to bring a flash flooding threat to the central Gulf Coast. Elevated to critical fire weather conditions are expected across much of the western U.S.. 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 71%
Wind Speed S 6 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 20 Jun 02:00 AM PDT
Extended Forecast for

Mercer Island WA

  • Overnight

    Overnight: Mostly clear, with a low around 56. South wind around 7 mph.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 77. South wind 5 to 9 mph becoming west in the afternoon.

    High: 77 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. West southwest wind 5 to 8 mph becoming south after midnight.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 81. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57. North wind 5 to 7 mph becoming calm  in the evening.

    Low: 57 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Monday Night

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

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Tuesday Night

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

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 56. South wind around 7 mph.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 77. South wind 5 to 9 mph becoming west in the afternoon.
Saturday Night
Mostly clear, with a low around 55. West southwest wind 5 to 8 mph becoming south after midnight.
Sunday
Sunny, with a high near 81. Calm wind becoming north northwest around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 57. North wind 5 to 7 mph becoming calm in the evening.
Monday
Sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 62.
Tuesday
Sunny, with a high near 92.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 56.
Friday
A chance of rain. Mostly cloudy, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.58°N 122.22°W (Elev. 118 ft)
11:26 pm PDT Jun 19, 2026
2am PDT Jun 20, 2026-6pm PDT Jun 26, 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