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

Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

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

Mostly Cloudy

64°F

18°C

Humidity 72%
Wind Speed SSW 4 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 14 Aug 11:35 AM PDT
Extended Forecast for

Mercer Island WA

  • Today

    Today: Sunny, with a high near 82. South southwest wind around 5 mph becoming calm in the afternoon.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Patchy smoke before 8pm. Increasing clouds, with a low around 60. Light and variable wind.

    Low: 60 °F

    Patchy Smoke
    then Mostly
    Cloudy

  • Saturday

    Saturday: Cloudy through mid morning, then gradual clearing, with a high near 80. Light west southwest wind.

    High: 80 °F

    Gradual
    Clearing

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 59. Light and variable wind.

    Low: 59 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 80. Light and variable wind.

    High: 80 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 82. South southwest wind around 5 mph becoming calm in the afternoon.
Tonight
Patchy smoke before 8pm. Increasing clouds, with a low around 60. Light and variable wind.
Saturday
Cloudy through mid morning, then gradual clearing, with a high near 80. Light west southwest wind.
Saturday Night
Increasing clouds, with a low around 59. Light and variable wind.
Sunday
Partly sunny, with a high near 80. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Partly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Partly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Partly sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Partly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.58°N 122.22°W (Elev. 118 ft)
Last Update:
11:26 am PDT Aug 14, 2026
Forecast Valid:
11am PDT Aug 14, 2026-6pm PDT Aug 20, 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