Current conditions at
Washington/Dulles International Airport, DC (KIAD)
Lat: 38.93°NLon: 77.45°WElev: 312ft.
Mostly Cloudy
85°F
29°C
| Humidity | 50% |
| Wind Speed | NW 8 mph |
| Barometer | 29.91 in (1012.3 mb) |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Heat Index | 86°F (30°C) |
| Last update | 18 Aug 3:52 pm EDT |
Extended Forecast for
Reston VA
Tonight

Low: 66 °F
Mostly Clear
Wednesday

High: 88 °F
Sunny
Wednesday Night

Low: 70 °F
Increasing
CloudsThursday
High: 85 °F
Partly Sunny
then Showers
LikelyThursday Night

Low: 66 °F
Showers
LikelyFriday

High: 82 °F
Chance
ShowersFriday Night

Low: 67 °F
Chance
ShowersSaturday

High: 83 °F
Chance
ShowersSaturday Night

Low: 67 °F
Chance
Showers
Detailed Forecast
Tonight
Mostly clear, with a low around 66. Northwest wind 3 to 6 mph.
Wednesday
Sunny, with a high near 88. Calm wind becoming northwest around 5 mph in the afternoon.
Wednesday Night
Increasing clouds, with a low around 70. Calm wind.
Thursday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 85. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 66. Light north wind. Chance of precipitation is 60%.
Friday
A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 50%.
Saturday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 50%.
Sunday
A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 64. Chance of precipitation is 30%.
Monday
Sunny, with a high near 83.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 65. Chance of precipitation is 20%.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Reston VA
38.95°N 77.36°W (Elev. 446 ft)
38.95°N 77.36°W (Elev. 446 ft)
2:22 pm EDT Aug 18, 2026
4pm EDT Aug 18, 2026-6pm EDT Aug 25, 2026


