Storm System to Move Across the Ohio Valley to the Mid-Atlantic and Northeast

Isolated severe thunderstorms will be possible on Veterans Day across parts of the lower Ohio and western Tennessee Valleys. A developing storm will bring rain and gusty winds to the Mid-Atlantic and Northeast on Thursday, with the first accumulating snow likely in the higher elevations of the central Appalachians and interior Northeast. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Fog

50°F

10°C

Humidity	100%
Wind Speed	Calm
Barometer	29.56 in (1000.7 mb)
Dewpoint	50°F (10°C)
Visibility	0.13 mi
Last update	12 Nov 5:52 am EST

More Information:

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

Extended Forecast for

Herndon VA

Today
High: 61 °F
Showers
Likely
Tonight
Low: 42 °F
Chance
Showers
Friday
High: 50 °F
Slight Chance
Showers
Friday Night
Low: 34 °F
Partly Cloudy
Saturday
High: 50 °F
Mostly Sunny
Saturday Night
Low: 35 °F
Mostly Clear
Sunday
High: 52 °F
Mostly Sunny
Sunday Night
Low: 35 °F
Partly Cloudy
Monday
High: 52 °F
Mostly Sunny

Detailed Forecast

Today

Showers likely, mainly between 7am and 1pm. Mostly cloudy, with a high near 61. Light and variable wind becoming northwest 5 to 10 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Tonight

A chance of showers, mainly before 1am. Mostly cloudy, with a low around 42. Northwest wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

Friday

A slight chance of showers before 1pm. Partly sunny, with a high near 50. Northwest wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

Friday Night

Partly cloudy, with a low around 34. North wind 7 to 11 mph, with gusts as high as 18 mph.

Saturday

Mostly sunny, with a high near 50. Northwest wind 9 to 17 mph, with gusts as high as 28 mph.

Saturday Night

Mostly clear, with a low around 35.

Sunday

Mostly sunny, with a high near 52.

Sunday Night

Partly cloudy, with a low around 35.

Monday

Mostly sunny, with a high near 52.