National Weather Service

News Headlines

NWS Survey Confirms EF-0 Tornado Near New Windsor on Monday, March 16, 2026

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

71°F

22°C

Humidity	29%
Wind Speed	S 12 G 26 mph
Barometer	29.78 in (1008.5 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Last update	20 Mar 4:52 pm EDT

More Information:

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

Extended Forecast for

3 Miles NNW Mc Lean VA

Tonight
Low: 50 °F
Showers
Likely
Saturday
High: 65 °F
Mostly Sunny
Saturday Night
Low: 48 °F
Partly Cloudy
Sunday
High: 79 °F
Partly Sunny
Sunday Night
Low: 53 °F
Chance
Showers then
Showers
Likely
Monday
High: 60 °F
Showers
Likely then
Slight Chance
Rain
Monday Night
Low: 34 °F
Mostly Clear
Tuesday
High: 51 °F
Sunny
Tuesday Night
Low: 38 °F
Mostly Cloudy

Detailed Forecast

Tonight

Showers and thunderstorms likely before 2am, then isolated showers between 2am and 3am. Cloudy during the early evening, then gradual clearing, with a low around 50. Southwest wind 6 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Saturday

Mostly sunny, with a high near 65. North wind around 7 mph.

Saturday Night

Partly cloudy, with a low around 48. Light and variable wind becoming southeast around 5 mph after midnight.

Sunday

Partly sunny, with a high near 79. Southwest wind 6 to 8 mph.

Sunday Night

Showers likely, mainly after 2am. Mostly cloudy, with a low around 53. South wind around 9 mph. Chance of precipitation is 60%.

Monday

Showers likely before 8am, then a slight chance of rain between 8am and 2pm. Partly sunny, with a high near 60. Chance of precipitation is 60%.

Monday Night

Mostly clear, with a low around 34.