Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

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

Clear

59°F

15°C

Humidity 86%
Wind Speed S 5 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 19 Aug 02:53 AM PDT
Extended Forecast for

2 Miles NW Mercer Island WA

  • Overnight

    Overnight: Partly cloudy, with a low around 60. Light south wind.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 78. South wind around 5 mph becoming calm  in the morning.

    High: 78 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60. Light north northeast wind.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 80. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. North northwest wind around 6 mph becoming calm  in the evening.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

  • Friday Night

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

    Low: 61 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain.  Mostly cloudy, with a high near 71.

    High: 71 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A slight chance of rain after 11pm.  Mostly cloudy, with a low around 59.

    Low: 59 °F

    Slight Chance
    Rain

Detailed Forecast

Overnight
Partly cloudy, with a low around 60. Light south wind.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 78. South wind around 5 mph becoming calm in the morning.
Wednesday Night
Partly cloudy, with a low around 60. Light north northeast wind.
Thursday
Mostly sunny, with a high near 80. Calm wind becoming north northwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 60. North northwest wind around 6 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 80.
Friday Night
Mostly cloudy, with a low around 61.
Saturday
A chance of rain. Mostly cloudy, with a high near 71.
Saturday Night
A slight chance of rain after 11pm. Mostly cloudy, with a low around 59.
Sunday
Partly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Partly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Partly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Mercer Island WA
 47.6°N 122.25°W (Elev. 3 ft)
11:26 pm PDT Aug 18, 2026
3am PDT Aug 19, 2026-6pm PDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database