Current conditions at
Washington/Dulles International Airport, DC (KIAD)
Lat: 38.93°NLon: 77.45°WElev: 312ft.
Overcast
38°F
3°C
| Humidity | 70% |
| Wind Speed | Calm |
| Barometer | 30.21 in (1023.4 mb) |
| Dewpoint | 29°F (-2°C) |
| Visibility | 10.00 mi |
| Last update | 27 Dec 9:52 pm EST |
Extended Forecast for
Vienna VA
Tonight

Low: 29 °F
Mostly Cloudy
Sunday
High: 48 °F
Mostly Cloudy
then Slight
Chance RainSunday Night
Low: 42 °F⇑
Patchy Fog
then Slight
Chance Rain
and Patchy
FogMonday

High: 58 °F
Chance Rain
and Patchy
FogMonday Night

Low: 26 °F
Partly Cloudy
Tuesday

High: 36 °F
Mostly Sunny
and BreezyTuesday Night

Low: 25 °F
Mostly Clear
Wednesday

High: 42 °F
Mostly Sunny
Wednesday Night

Low: 27 °F
Mostly Cloudy
Detailed Forecast
Tonight
Mostly cloudy, with a low around 29. Calm wind.
Sunday
A slight chance of rain between 1pm and 4pm. Mostly cloudy, with a high near 48. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Sunday Night
A slight chance of rain after 1am. Patchy fog before 1am, then patchy fog after 2am. Otherwise, cloudy, with a temperature falling to near 42 by 8pm, then rising to around 51 during the remainder of the night. South wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Monday
A chance of rain, mainly before 1pm. Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 58. Southwest wind 15 to 18 mph becoming west in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 26. West wind around 17 mph, with gusts as high as 33 mph.
Tuesday
Mostly sunny, with a high near 36. Breezy.
Tuesday Night
Mostly clear, with a low around 25.
Wednesday
Mostly sunny, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 27.
New Year's Day
Mostly cloudy, with a high near 41.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Sunny, with a high near 36.
Friday Night
Mostly clear, with a low around 22.
Saturday
Mostly sunny, with a high near 40.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Vienna VA
38.89°N 77.25°W (Elev. 348 ft)
38.89°N 77.25°W (Elev. 348 ft)
9:53 pm EST Dec 27, 2025
10pm EST Dec 27, 2025-6pm EST Jan 3, 2026


