Air Quality Concerns; Fire Weather in the West; Flash Flooding in the Southeast

Wildfire smoke continues to result in poor air quality from the Upper Midwest into the Northeast. Multiple days of hot, dry and windy conditions are expected to bring fire weather concerns for portions of the Four Corners region into the central Great Basin and Rockies. Heavy rainfall and a flash flooding threat continues in the Southeast. Severe thunderstorms continue across the Northern Plains Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

78°F

26°C

Humidity 60%
Wind Speed S 6 mph
Barometer 30.26 in (1024.5 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 5 Aug 5:52 pm EDT
Extended Forecast for

Chantilly VA

  • Tonight

    Tonight: Mostly cloudy, with a low around 66. Southeast wind around 5 mph becoming calm  in the evening.

    Low: 66 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 82. East wind 3 to 7 mph.

    High: 82 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Cloudy during the early evening, then becoming partly cloudy, with a low around 66. East wind 3 to 6 mph.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers after 2pm.  Mostly sunny, with a high near 83. East wind 6 to 9 mph.  Chance of precipitation is 20%.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 64. East wind 3 to 7 mph.

    Low: 64 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 66. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly cloudy, with a high near 82. East wind 3 to 7 mph.
Wednesday Night
Cloudy during the early evening, then becoming partly cloudy, with a low around 66. East wind 3 to 6 mph.
Thursday
A slight chance of showers after 2pm. Mostly sunny, with a high near 83. East wind 6 to 9 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 64. East wind 3 to 7 mph.
Friday
Mostly sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 68.
Monday
Mostly sunny, with a high near 91.
Monday Night
Partly cloudy, with a low around 71.
Tuesday
Mostly sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
Chantilly VA
 38.88°N 77.4°W (Elev. 358 ft)
4:30 pm EDT Aug 5, 2025
6pm EDT Aug 5, 2025-6pm EDT Aug 12, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database