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.

A Few Clouds

41°F

5°C

Humidity	70%
Wind Speed	SE 3 mph
Barometer	30.18 in (1022.0 mb)
Dewpoint	32°F (0°C)
Visibility	10.00 mi
Last update	20 Mar 12:52 am EDT

More Information:

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

Extended Forecast for

Great Falls VA

Overnight
Low: 38 °F
Mostly Clear
Friday
High: 68 °F
Sunny then
Scattered
Showers
Friday Night
Low: 47 °F
Showers
Likely
Saturday
High: 67 °F
Mostly Sunny
Saturday Night
Low: 46 °F
Mostly Cloudy
Sunday
High: 74 °F
Partly Sunny
Sunday Night
Low: 51 °F
Mostly Cloudy
then Chance
Rain
Monday
High: 61 °F
Chance Rain
then Mostly
Sunny
Monday Night
Low: 31 °F
Mostly Clear

Detailed Forecast

Overnight

Mostly clear, with a low around 38. Calm wind.

Friday

Scattered showers after 5pm. Increasing clouds, with a high near 68. Light south wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 30%.

Friday Night

Scattered showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 47. Southwest wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

Mostly sunny, with a high near 67. Northwest wind around 7 mph.

Saturday Night

Mostly cloudy, with a low around 46. Light east wind.

Sunday

Partly sunny, with a high near 74.

Sunday Night

A chance of rain after 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 40%.

Monday

A chance of rain before 8am. Mostly sunny, with a high near 61. Chance of precipitation is 30%.

Monday Night

Mostly clear, with a low around 31.