Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. 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

72°F

22°C

Humidity	91%
Wind Speed	S 3 mph
Barometer	30.02 in (1016.1 mb)
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Last update	9 Aug 12:52 am EDT

More Information:

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

Extended Forecast for

Chantilly VA

Overnight
Low: 72 °F
Partly Cloudy
Sunday
High: 91 °F
Mostly Sunny
Sunday Night
Low: 71 °F
Mostly Clear
Monday
High: 93 °F
Sunny then
Slight Chance
T-storms
Monday Night
Low: 72 °F
Slight Chance
T-storms then
Slight Chance
Showers
Tuesday
High: 90 °F
Mostly Sunny
then Showers
Likely
Tuesday Night
Low: 70 °F
Showers
Likely then
Chance
T-storms
Wednesday
High: 88 °F
Partly Sunny
then Chance
T-storms
Wednesday Night
Low: 70 °F
Chance
T-storms then
Chance
Showers

Detailed Forecast

Overnight

Partly cloudy, with a low around 72. Light southwest wind.

Sunday

Mostly sunny, with a high near 91. Calm wind becoming northwest 5 to 7 mph in the morning.

Sunday Night

Mostly clear, with a low around 71. Calm wind.

Monday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 101. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 20%.

Monday Night

A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

Tuesday

Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 60%.

Tuesday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

Wednesday

A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 50%.

Thursday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 30%.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

Friday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 20%.

Friday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 20%.

Saturday

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