Current conditions at
Washington/Dulles International Airport, DC (KIAD)
Lat: 38.93°NLon: 77.45°WElev: 312ft.
Fair
74°F
23°C
| Humidity | 94% |
| Wind Speed | Calm |
| Barometer | 29.87 in (1011.1 mb) |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Last update | 17 Aug 11:52 pm EDT |
Extended Forecast for
Reston VA
Overnight

Low: 71 °F
Decreasing
CloudsTuesday

High: 85 °F
Sunny
Tuesday Night

Low: 66 °F
Mostly Clear
Wednesday

High: 87 °F
Sunny
Wednesday Night

Low: 70 °F
Partly Cloudy
Thursday
High: 84 °F
Slight Chance
Showers then
Showers
LikelyThursday Night

Low: 67 °F
Showers
LikelyFriday
High: 80 °F
Slight Chance
Showers then
Chance
T-stormsFriday Night

Low: 67 °F
Showers
Likely
Detailed Forecast
Overnight
Mostly cloudy, then gradually becoming mostly clear, with a low around 71. Light northwest wind.
Tuesday
Sunny, with a high near 85. Northwest wind 6 to 8 mph.
Tuesday Night
Mostly clear, with a low around 66. Light northwest wind.
Wednesday
Sunny, with a high near 87. Calm wind becoming west around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 70. Calm wind.
Thursday
A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Saturday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Monday
Sunny, with a high near 80.
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)
10:53 pm EDT Aug 17, 2026
12am EDT Aug 18, 2026-6pm EDT Aug 24, 2026


