National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Excessive Rainfall; Refreshingly Cool Air Remains over Much of the Central and Eastern U.S.

Heavy thunderstorms may bring excessive rainfall and possible flooding over parts of the northern Gulf Coast Friday and over parts of Texas and New Mexico Friday through the weekend. A refreshingly cool and dry air mass will continue to produce below average temperatures over much of the central and eastern U.S. into this weekend. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

66°F

19°C

Humidity 52%
Wind Speed Calm
Barometer 30.05 in (1017.4 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 28 Aug 9:52 pm EDT
Extended Forecast for

Chantilly VA

  • Tonight

    Tonight: Partly cloudy, with a low around 58. Light west wind.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 80. Light west wind becoming northwest 5 to 10 mph in the morning.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55. North wind 5 to 7 mph.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 77. North wind around 6 mph.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. Light north wind.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 58. Light west wind.
Friday
Sunny, with a high near 80. Light west wind becoming northwest 5 to 10 mph in the morning.
Friday Night
Partly cloudy, with a low around 55. North wind 5 to 7 mph.
Saturday
Mostly sunny, with a high near 77. North wind around 6 mph.
Saturday Night
Mostly clear, with a low around 55. Light north wind.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 56.
Labor Day
Sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chantilly VA
 38.88°N 77.43°W (Elev. 299 ft)
Last Update:
10:30 pm EDT Aug 28, 2025
Forecast Valid:
10pm EDT Aug 28, 2025-6pm EDT Sep 4, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation