National Weather Service

News Headlines

Our Forecaster Discussions have changed format to focus on Key Messages.
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

51°F

11°C

Humidity	32%
Wind Speed	S 18 G 29 mph
Barometer	29.74 in (1007.1 mb)
Dewpoint	22°F (-6°C)
Visibility	10.00 mi
Wind Chill	45°F (7°C)
Last update	13 Jan 9:52 pm EST

More Information:

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

Extended Forecast for

Chantilly VA

Tonight
Low: 41 °F
Mostly Cloudy
Wednesday
High: 52 °F
Chance Rain
Wednesday Night
Low: 24 °F
Rain/Snow
Likely
Thursday
High: 31 °F
Mostly Sunny
Thursday Night
Low: 17 °F
Mostly Clear
Friday
High: 35 °F
Mostly Sunny
Friday Night
Low: 28 °F
Partly Cloudy
Saturday
High: 44 °F
Mostly Sunny
Saturday Night
Low: 22 °F
Mostly Cloudy

Detailed Forecast

Tonight

Mostly cloudy, with a low around 41. Southwest wind 8 to 13 mph, with gusts as high as 23 mph.

Wednesday

A slight chance of rain before 11am, then a chance of rain after 3pm. Cloudy, with a high near 52. South wind around 6 mph. Chance of precipitation is 30%.

Wednesday Night

Rain likely, possibly mixed with snow before 1am, then a chance of rain between 1am and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 24. Light and variable wind becoming northwest 8 to 13 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Thursday

Mostly sunny, with a high near 31. Northwest wind 14 to 18 mph, with gusts as high as 32 mph.

Thursday Night

Mostly clear, with a low around 17. Northwest wind 6 to 11 mph, with gusts as high as 21 mph.

Friday

Mostly sunny, with a high near 35.

Friday Night

Partly cloudy, with a low around 28.

Saturday

Mostly sunny, with a high near 44.

Saturday Night

Mostly cloudy, with a low around 22.