Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

A Few Clouds

70°F

21°C

Humidity	73%
Wind Speed	S 7 mph
Barometer	29.82 in (1009.3 mb)
Dewpoint	61°F (16°C)
Visibility	10.00 mi
Last update	17 Jun 7:52 am EDT

More Information:

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

Extended Forecast for

2 Miles SSW Great Falls VA

Today
High: 87 °F
Mostly Sunny
Tonight
Low: 71 °F
Partly Cloudy
Thursday
High: 92 °F
Chance
T-storms
Thursday Night
Low: 68 °F
Partly Cloudy
then Chance
Showers
Juneteenth
High: 84 °F
Chance
Showers then
Sunny
Friday Night
Low: 63 °F
Mostly Clear
Saturday
High: 83 °F
Sunny
Saturday Night
Low: 62 °F
Mostly Clear
Sunday
High: 87 °F
Sunny

Detailed Forecast

Today

Mostly sunny, with a high near 87. Southwest wind 3 to 7 mph.

Tonight

Partly cloudy, with a low around 71. South wind 5 to 9 mph, with gusts as high as 21 mph.

Thursday

A chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 92. Southwest wind 14 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

Thursday Night

A chance of showers after 2am. Mostly cloudy, with a low around 68. Northwest wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

Juneteenth

A chance of showers before 8am. Mostly sunny, with a high near 84. Northwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

Friday Night

Mostly clear, with a low around 63.

Saturday

Sunny, with a high near 83.

Saturday Night

Mostly clear, with a low around 62.

Sunday

Sunny, with a high near 87.

Sunday Night

A slight chance of showers and thunderstorms, then a chance of showers after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

Monday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 86. Chance of precipitation is 70%.

Monday Night

Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

Tuesday

A slight chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 20%.