Severe Weather Threats Across the Plains; Dangerous Heat and Wildfire Concerns for the West; Watching the Tropics

Severe thunderstorms are expected across the Central Plains accompanied by damaging wind gusts and large hail. In addition, heavy rainfall may lead to instances of flash flooding from the Plains and mid-Atlantic regions. The heavy rainfall threat continues across Florida and across the northern Gulf as we monitor a tropical disturbance tracking westward. Critical fire weather for the Great Basin. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

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

Clear

61°F

16°C

Humidity 77%
Wind Speed N 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 15 Jul 06:20 AM PDT
Extended Forecast for

Mercer Island WA

Heat Advisory July 15, 12:00pm until July 16, 10:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Sunny, with a high near 82. Calm wind becoming north northwest 5 to 9 mph in the morning.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 64. North wind 5 to 8 mph becoming calm  after midnight.

    Low: 64 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. North northwest wind around 6 mph becoming calm  in the evening.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83. Light and variable wind becoming west northwest around 5 mph in the afternoon.

    High: 83 °F

    Sunny

  • Thursday Night

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

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 82. Calm wind becoming north northwest 5 to 9 mph in the morning.
Tonight
Clear, with a low around 64. North wind 5 to 8 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 89. Calm wind becoming west northwest around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 61. North northwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 83. Light and variable wind becoming west northwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 61.
Friday
Mostly sunny, with a high near 80.
Friday Night
Mostly cloudy, with a low around 59.
Saturday
Partly sunny, with a high near 73.
Saturday Night
Mostly cloudy, with a low around 58.
Sunday
Partly sunny, with a high near 72.
Sunday Night
Mostly cloudy, with a low around 58.
Monday
Partly sunny, with a high near 74.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.58°N 122.25°W (Elev. 105 ft)
2:25 am PDT Jul 15, 2025
6am PDT Jul 15, 2025-6pm PDT Jul 21, 2025
 
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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