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 >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

70°F

21°C

Humidity 97%
Wind Speed S 5 mph
Barometer 29.94 in (1013.4 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 4 Sep 2:52 am EDT
Extended Forecast for

Sterling VA

  • Overnight

    Overnight: A chance of showers before 3am.  Mostly cloudy, with a low around 72. West wind around 5 mph becoming calm.  Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm.  Increasing clouds, with a high near 90. Calm wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Sunny then
    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, mainly before 9pm.  Mostly cloudy, with a low around 71. West wind 3 to 5 mph.  Chance of precipitation is 40%.

    Low: 71 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 3pm.  Partly sunny, with a high near 83. North wind 3 to 6 mph.  Chance of precipitation is 30%.

    High: 83 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 64. Light north wind.  Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 61 °F

    Mostly Clear

  • Labor Day

    Labor Day: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Monday Night

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

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers before 3am. Mostly cloudy, with a low around 72. West wind around 5 mph becoming calm. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 90. Calm wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 71. West wind 3 to 5 mph. Chance of precipitation is 40%.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 83. North wind 3 to 6 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. Light north wind. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 61.
Labor Day
Mostly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 20%.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Sterling VA
 39°N 77.44°W (Elev. 299 ft)
2:22 am EDT Sep 4, 2026
2am EDT Sep 4, 2026-6pm EDT Sep 10, 2026
 
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