National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Remnants of Arthur and Heavy Rainfall Across the South; Fire Weather Threat in the West

Life-threatening, potentially catastrophic flash flooding expected along the central Gulf Coast as the remnants of Arthur track across the area. Isolated brief tornadoes and damaging gusts remain possible overnight in the Southeast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts of the West Friday. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

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

Clear

63°F

17°C

Humidity 67%
Wind Speed W 3 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 19 Jun 07:15 AM PDT
Extended Forecast for

Mercer Island WA

  • Juneteenth

    Juneteenth: Sunny, with a high near 80. Northwest wind 3 to 5 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 56. Light and variable wind becoming south 5 to 9 mph after midnight.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Cloudy through mid morning, then gradual clearing, with a high near 74. South wind 6 to 9 mph.

    High: 74 °F

    Gradual
    Clearing

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. Southwest wind around 7 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 79. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

Juneteenth
Sunny, with a high near 80. Northwest wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 56. Light and variable wind becoming south 5 to 9 mph after midnight.
Saturday
Cloudy through mid morning, then gradual clearing, with a high near 74. South wind 6 to 9 mph.
Saturday Night
Mostly clear, with a low around 55. Southwest wind around 7 mph.
Sunday
Sunny, with a high near 79. Calm wind becoming north northwest around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 58.
Monday
Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.58°N 122.25°W (Elev. 105 ft)
Last Update:
11:26 pm PDT Jun 18, 2026
Forecast Valid:
7am PDT Jun 19, 2026-6pm PDT Jun 25, 2026
 
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Additional Resources

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