Severe Thunderstorms in the Ohio Valley and Mid-Atlantic; Heat Continuing in the Central U.S.

Widespread strong to severe thunderstorms are expected from the Upper Ohio Valley into the Mid-Atlantic through Friday, with damaging winds as the primary threat. Dangerous heat will continue from the South-Central U.S. to the Midwest, Ohio/Tennessee valleys, and Mid-Atlantic. Widespread Major to Extreme Heat Risk is forecast into the weekend and will confine to the South-Central U.S. by Labor Day Read More >

Current conditions at

Renton Municipal Airport (KRNT)

Lat: 47.49509°NLon: 122.21437°WElev: 23.0ft.

Overcast

55°F

13°C

Humidity 93%
Wind Speed SSE 3 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 04 Sep 12:20 AM PDT
Extended Forecast for

Sammamish WA

  • Overnight

    Overnight: Mostly cloudy, with a low around 50. Light and variable wind.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 70. Calm wind becoming northwest around 5 mph.

    High: 70 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49. Light and variable wind.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of rain, mainly between 1pm and 2pm, then a slight chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 71. Calm wind becoming north northwest around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 71 °F

    Slight Chance
    Rain then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 50. Light and variable wind.
Friday
Partly sunny, with a high near 70. Calm wind becoming northwest around 5 mph.
Friday Night
Mostly cloudy, with a low around 49. Light and variable wind.
Saturday
A slight chance of rain, mainly between 1pm and 2pm, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 71. Calm wind becoming north northwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 50. Northeast wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 51.
Labor Day
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Partly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Partly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Sammamish WA
 47.6°N 122.03°W (Elev. 463 ft)
11:26 pm PDT Sep 3, 2026
12am PDT Sep 4, 2026-6pm PDT Sep 10, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database