Current conditions at
Washington/Dulles International Airport, DC (KIAD)
Lat: 38.93°NLon: 77.45°WElev: 312ft.
Mostly Cloudy
80°F
27°C
| Humidity | 41% |
| Wind Speed | NE 6 mph |
| Barometer | 30.02 in (1016.4 mb) |
| Dewpoint | 54°F (12°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 21 Aug 4:52 pm EDT |
Extended Forecast for
3 Miles ESE Chantilly VA
Tonight
Low: 65 °F
Isolated
Showers then
ShowersSaturday
High: 78 °F
Showers and
Areas FogSaturday Night
Low: 66 °F
Scattered
ShowersSunday
High: 83 °F
Mostly Sunny
Sunday Night
Low: 62 °F
Mostly Clear
Monday
High: 81 °F
Sunny
Monday Night
Low: 60 °F
Mostly Clear
Tuesday
High: 82 °F
Sunny
Tuesday Night
Low: 64 °F
Mostly Clear
Detailed Forecast
Tonight
Isolated showers before 2am, then showers and possibly a thunderstorm between 2am and 5am, then showers after 5am. Low around 65. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers before 8am, then showers and possibly a thunderstorm between 8am and 2pm, then scattered showers and thunderstorms after 2pm. Areas of fog before 2pm. High near 78. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Scattered showers and thunderstorms before 11pm, then isolated showers. Mostly cloudy, with a low around 66. Light and variable wind. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 83. Northwest wind 5 to 9 mph.
Sunday Night
Mostly clear, with a low around 62. Northwest wind around 6 mph.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles ESE Chantilly VA
38.86°N 77.37°W (Elev. 449 ft)
38.86°N 77.37°W (Elev. 449 ft)
4:53 pm EDT Aug 21, 2026
5pm EDT Aug 21, 2026-6pm EDT Aug 28, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
