Current conditions at
Washington/Dulles International Airport, DC (KIAD)
Lat: 38.93°NLon: 77.45°WElev: 312ft.
Mostly Cloudy
78°F
26°C
| Humidity | 79% |
| Wind Speed | NE 5 mph |
| Barometer | 30.07 in (1017.9 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 14 Aug 8:52 pm EDT |
Extended Forecast for
Vienna VASimilar City Names
Tonight
Low: 70 °F
Slight Chance
Showers then
Partly CloudySaturday
High: 88 °F
Mostly Sunny
Saturday Night
Low: 71 °F
Mostly Cloudy
Sunday
High: 87 °F
Showers
LikelySunday Night
Low: 73 °F
Showers
LikelyMonday
High: 89 °F
Mostly Sunny
then Slight
Chance
T-stormsMonday Night
Low: 70 °F
Partly Cloudy
Tuesday
High: 87 °F
Sunny
Tuesday Night
Low: 68 °F
Mostly Clear
Detailed Forecast
Tonight
A slight chance of showers before 10pm. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 88. East wind 3 to 5 mph.
Saturday Night
Mostly cloudy, with a low around 71. Light southeast wind.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 87. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely and possibly a thunderstorm before 2am. Mostly cloudy, with a low around 73. West wind 6 to 8 mph. Chance of precipitation is 60%.
Monday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 70.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Sunny, with a high near 89.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 72. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Friday
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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Point Forecast:
Vienna VASimilar City Names
38.89°N 77.25°W (Elev. 348 ft)
38.89°N 77.25°W (Elev. 348 ft)
7:53 pm EDT Aug 14, 2026
9pm EDT Aug 14, 2026-6pm EDT Aug 21, 2026
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