Severe Thunderstorms in the Ohio and Tennessee Valleys; Flash Flooding Possible in the Southwest

Scattered damaging winds, isolated severe hail, and a brief tornado or two are possible from the Upper Ohio to Tennessee Valleys during the late afternoon and evening. Across the Southwest, monsoonal moisture will continue to bring heavy rain and a threat for isolated to scattered flash flooding through Saturday. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

71°F

22°C

Humidity 90%
Wind Speed S 6 mph
Barometer 29.94 in (1013.4 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 6 Sep 6:52 am EDT
Extended Forecast for

Sterling VA

  • Today

    Today: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm.  High near 87. Light and variable wind becoming west 5 to 8 mph in the morning.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Mostly Sunny
    then Showers

  • Tonight

    Tonight: Scattered showers and thunderstorms.  Mostly cloudy, with a low around 60. North wind around 6 mph.  Chance of precipitation is 50%.

    Low: 60 °F

    Scattered
    T-storms then
    Scattered
    Showers

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing, with a high near 75. Northwest wind around 6 mph.

    High: 75 °F

    Gradual
    Clearing

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51. Northwest wind around 6 mph.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75. Northeast wind around 6 mph.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 87. Light and variable wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 60. North wind around 6 mph. Chance of precipitation is 50%.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 75. Northwest wind around 6 mph.
Sunday Night
Mostly clear, with a low around 51. Northwest wind around 6 mph.
Monday
Sunny, with a high near 75. Northeast wind around 6 mph.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Mostly cloudy, with a low around 55.
Wednesday
Partly sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 57.
Friday
Sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Sterling VA
 39°N 77.44°W (Elev. 299 ft)
7:29 am EDT Sep 6, 2025
7am EDT Sep 6, 2025-6pm EDT Sep 12, 2025
 
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Additional Resources

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