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.

Partly Cloudy

67°F

19°C

Humidity	76%
Wind Speed	S 6 mph
Barometer	29.80 in (1008.7 mb)
Dewpoint	59°F (15°C)
Visibility	10.00 mi
Last update	17 Jun 1:52 am EDT

More Information:

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

Extended Forecast for

3 Miles SSE Chantilly VA

Overnight
Low: 62 °F
Isolated
Showers
Wednesday
High: 87 °F
Becoming
Sunny
Wednesday Night
Low: 70 °F
Partly Cloudy
Thursday
High: 92 °F
Partly Sunny
then Slight
Chance
Showers
Thursday Night
Low: 68 °F
Slight Chance
T-storms then
Chance
Showers
Juneteenth
High: 84 °F
Chance
Showers
Friday Night
Low: 63 °F
Mostly Clear
Saturday
High: 83 °F
Sunny
Saturday Night
Low: 63 °F
Mostly Clear

Detailed Forecast

Overnight

Isolated showers. Mostly cloudy, with a low around 62. South wind around 5 mph. Chance of precipitation is 20%.

Wednesday

Partly sunny, then gradually becoming sunny, with a high near 87. South wind 3 to 8 mph.

Wednesday Night

Partly cloudy, with a low around 70. South wind 6 to 10 mph, with gusts as high as 21 mph.

Thursday

A slight chance of showers between 1pm and 2pm. Mostly sunny, with a high near 92. Southwest wind 14 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.

Thursday Night

A slight chance of showers and thunderstorms, then a chance of showers after 11pm. Mostly cloudy, with a low around 68. West wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.

Juneteenth

A chance of showers, mainly before 8am. Mostly sunny, with a high near 84. 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 63.

Sunday

Mostly sunny, with a high near 86.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.