National Weather Service

News Headlines

2026 NWS Baltimore/Washington summer student volunteer application period is now open

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

26°F

-3°C

Humidity	38%
Wind Speed	E 5 mph
Barometer	29.87 in (1011.7 mb)
Dewpoint	4°F (-16°C)
Visibility	10.00 mi
Wind Chill	20°F (-7°C)
Last update	2 Jan 1:52 am EST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Vienna VA

Overnight
Low: 24 °F
Slight Chance
Snow Showers
Friday
High: 40 °F
Decreasing
Clouds
Friday Night
Low: 26 °F
Increasing
Clouds
Saturday
High: 37 °F
Cloudy
Saturday Night
Low: 25 °F
Slight Chance
Snow
Sunday
High: 40 °F
Sunny
Sunday Night
Low: 24 °F
Partly Cloudy
Monday
High: 39 °F
Mostly Cloudy
Monday Night
Low: 33 °F
Mostly Cloudy

Detailed Forecast

Overnight

A slight chance of snow showers before 3am, then a slight chance of snow after 3am. Mostly cloudy, with a low around 24. Calm wind. Chance of precipitation is 20%.

Friday

Mostly cloudy, then gradually becoming sunny, with a high near 40. Calm wind becoming west around 6 mph in the afternoon.

Friday Night

Increasing clouds, with a low around 26. North wind 3 to 5 mph.

Saturday

Cloudy, with a high near 37. Light north wind.

Saturday Night

A slight chance of snow before 1am. Mostly cloudy, with a low around 25. Calm wind. Chance of precipitation is 20%.

Sunday

Sunny, with a high near 40.

Sunday Night

Partly cloudy, with a low around 24.