National Weather Service

News Headlines

Four tornadoes struck eastern WV and northwestern VA during the thunderstorms last Tuesday evening, one travelled 10 miles.

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

85°F

29°C

Humidity	63%
Wind Speed	SE 7 mph
Barometer	29.61 in (1002.1 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	90°F (32°C)
Last update	28 Jul 1:52 pm EDT

More Information:

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

Extended Forecast for

2 Miles SW Great Falls VA

This Afternoon
High: 84 °F
Severe
Thunderstorms
Tonight
Low: 67 °F
Severe
Thunderstorms
then Clear
Wednesday
High: 83 °F
Increasing
Clouds
Wednesday Night
Low: 67 °F
Partly Cloudy
Thursday
High: 83 °F
Mostly Sunny
Thursday Night
Low: 66 °F
Mostly Clear
Friday
High: 86 °F
Sunny
Friday Night
Low: 67 °F
Partly Cloudy
Saturday
High: 88 °F
Partly Sunny

Detailed Forecast

This Afternoon

Showers and thunderstorms likely before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms after 5pm. Some of the storms could be severe. High near 84. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers and thunderstorms likely, mainly before 8pm. Some of the storms could be severe. Mostly cloudy during the early evening, then gradual clearing, with a low around 67. Northwest wind 5 to 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

Increasing clouds, with a high near 83. Northwest wind 11 to 14 mph, with gusts as high as 26 mph.

Wednesday Night

Partly cloudy, with a low around 67. Northwest wind 10 to 13 mph, with gusts as high as 21 mph.

Thursday

Mostly sunny, with a high near 83. Northwest wind around 14 mph, with gusts as high as 25 mph.

Thursday Night

Mostly clear, with a low around 66.

Friday

Sunny, with a high near 86.

Friday Night

Partly cloudy, with a low around 67.

Saturday

Partly sunny, with a high near 88.

Saturday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.

Sunday

A chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Chance of precipitation is 50%.

Sunday Night

Showers and thunderstorms likely. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

Monday

A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 30%.