Southern Heat Continues; Severe Storms and Heavy Rain

A summer heat wave continues across much of the Southern U.S where widespread excessive heat warnings and heat advisories remain in effect. Scattered thunderstorms, some severe with damaging winds and large hail, will be possible today mainly across Montana, and from the Ohio/Tennessee Valleys into the Carolinas. Excessive rainfall from thunderstorms in these areas may lead to flash flooding. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

En Español

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

80°F

27°C

Humidity	71%
Wind Speed	N 7 mph
Barometer	29.98 in (1015.0 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	7 Jul 12:52 pm EDT

More Information:

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

Extended Forecast for

3 Miles NW Chantilly VA

This
Afternoon

Showers
Likely
High: 82 °F
Tonight

Showers
Likely then
Chance
Showers
Low: 69 °F
Friday

Chance
Showers then
Showers
Likely
High: 88 °F
Friday
Night

Showers
Likely then
Chance
T-storms
Low: 71 °F
Saturday

Chance
Showers then
Chance
T-storms
High: 80 °F
Saturday
Night

Chance
T-storms then
Chance
Showers
Low: 65 °F
Sunday

Mostly Sunny
High: 79 °F
Sunday
Night

Mostly Clear
Low: 63 °F
Monday

Sunny
High: 84 °F

Detailed Forecast

This Afternoon

A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. North wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 69. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 88. Calm wind. Chance of precipitation is 60%.

Friday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 71. Light south wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Saturday

A chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Northeast wind 3 to 6 mph. Chance of precipitation is 50%.

Saturday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

Sunday

Mostly sunny, with a high near 79.

Sunday Night

Mostly clear, with a low around 63.

Monday

Sunny, with a high near 84.

Monday Night

Mostly clear, with a low around 68.

Tuesday

Sunny, with a high near 92.

Tuesday Night

Partly cloudy, with a low around 71.