Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

84°F

29°C

Humidity	41%
Wind Speed	SW 8 mph
Barometer	29.75 in (1007.0 mb)
Dewpoint	58°F (14°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	17 Jun 6:52 pm EDT

More Information:

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

Extended Forecast for

3 Miles SSE Chantilly VA

Tonight
Low: 70 °F
Mostly Cloudy
Thursday
High: 93 °F
Breezy.
Slight Chance
Showers then
Chance
T-storms
Thursday Night
Low: 68 °F
Mostly Cloudy
then Slight
Chance
Showers
Juneteenth
High: 84 °F
Mostly Sunny
Friday Night
Low: 63 °F
Clear
Saturday
High: 83 °F
Sunny
Saturday Night
Low: 63 °F
Mostly Clear
Sunday
High: 86 °F
Mostly Sunny
Sunday Night
Low: 66 °F
Slight Chance
T-storms then
Chance
Showers

Detailed Forecast

Tonight

Mostly cloudy, with a low around 70. South wind 7 to 10 mph, with gusts as high as 21 mph.

Thursday

A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 93. Breezy, with a west wind 16 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 50%.

Thursday Night

A slight chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 68. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Juneteenth

Mostly sunny, with a high near 84. Northwest wind 7 to 11 mph, with gusts as high as 21 mph.

Friday Night

Clear, with a low around 63. Northwest wind 6 to 10 mph.

Saturday

Sunny, with a high near 83.

Saturday Night

Mostly clear, with a low around 63.

Sunday

Mostly sunny, with a high near 86.

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, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 85. Chance of precipitation is 70%.

Monday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.

Tuesday

A slight chance of showers and thunderstorms. Sunny, with a high near 83. Chance of precipitation is 20%.

Tuesday Night

Mostly clear, with a low around 62.

Wednesday

Mostly sunny, with a high near 84.