Dangerous Heat in the West; Flash Flooding Possible Across the Southern US

Dangerous heat is expected across areas in Texas and from Washington through California. Several daily high temperature records are expected to be either tied or broken in the West. Monsoonal showers and thunderstorms may result in flash flooding and debris flows over the Southwestern U.S. through Friday. Locally heavy rain is expected from thunderstorms in the Southeast. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

Lat: 47.54548°NLon: 122.3147°WElev: 20ft.

Clear

64°F

18°C

Humidity 77%
Wind Speed N 0 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Aug 03:05 AM PDT
Extended Forecast for

Mercer Island WA

Heat Advisory August 17, 12:00pm until August 19, 12:00am
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Mostly clear, with a low around 61. Northeast wind around 6 mph.

    Mostly Clear

    Low: 61 °F

  • Wednesday

    Wednesday: Sunny, with a high near 82. North northwest wind 3 to 7 mph.

    Sunny

    High: 82 °F

  • Wednesday
    Night

    Wednesday Night: Increasing clouds, with a low around 65. North northwest wind 5 to 7 mph becoming calm  after midnight.

    Increasing
    Clouds

    Low: 65 °F

  • Thursday

    Thursday: Partly sunny, with a high near 86. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    Partly Sunny

    High: 86 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 65. Northwest wind around 5 mph becoming calm  in the evening.

    Partly Cloudy

    Low: 65 °F

  • Friday

    Friday: Partly sunny, with a high near 77.

    Partly Sunny

    High: 77 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 61.

    Partly Cloudy

    Low: 61 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 77.

    Mostly Sunny

    High: 77 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 60.

    Partly Cloudy

    Low: 60 °F

Detailed Forecast

Overnight
Mostly clear, with a low around 61. Northeast wind around 6 mph.
Wednesday
Sunny, with a high near 82. North northwest wind 3 to 7 mph.
Wednesday Night
Increasing clouds, with a low around 65. North northwest wind 5 to 7 mph becoming calm after midnight.
Thursday
Partly sunny, with a high near 86. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 65. Northwest wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
Partly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Mostly sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 78.
Click Map For Forecast
Point Forecast:
Mercer Island WA
 47.6°N 122.25°W (Elev. 3 ft)
2:50 am PDT Aug 17, 2022
3am PDT Aug 17, 2022-6pm PDT Aug 23, 2022
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database