Threats of Heavy Rainfall, Severe Thunderstorms and Dangerous Heat

Several complexes of thunderstorms, some severe with heavy rainfall, will impact areas from the northern Plains, Great Lakes, Ohio Valley to the mid-Atlantic. This threat will shift toward the Carolinas on Friday. Heavy rainfall, remnants of Edouard, continues for portions of eastern Texas through today. In-between these systems, a dome of high pressure and heat for central and eastern states. 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.

Mostly Cloudy

78°F

26°C

Humidity	82%
Wind Speed	Vrbl 6 mph
Barometer	30.04 in (1017.1 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	3 Sep 9:52 am EDT

More Information:

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

Extended Forecast for

3 Miles W Dulles VA

Today
High: 93 °F
Scattered
Showers then
Scattered
T-storms
Tonight
Low: 72 °F
Scattered
T-storms and
Patchy Fog
Friday
High: 92 °F
Patchy Fog
then Showers
Likely
Friday Night
Low: 70 °F
Chance
T-storms then
Chance
Showers
Saturday
High: 84 °F
Partly Sunny
then Chance
Showers
Saturday Night
Low: 62 °F
Chance
Showers then
Partly Cloudy
Sunday
High: 81 °F
Mostly Sunny
Sunday Night
Low: 61 °F
Mostly Clear
Labor Day
High: 82 °F
Sunny

Detailed Forecast

Today

Scattered showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 93. Heat index values as high as 101. West wind 3 to 7 mph. Chance of precipitation is 30%.

Tonight

Scattered showers and thunderstorms before 3am, then isolated showers after 5am. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

Friday

A slight chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm. Patchy fog before 8am. Otherwise, increasing clouds, with a high near 92. Heat index values as high as 101. Calm wind becoming northwest 5 to 9 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Friday Night

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 70. Northwest wind 3 to 5 mph. Chance of precipitation is 50%.

Saturday

A chance of showers after 2pm. Partly sunny, with a high near 84. North wind around 7 mph. Chance of precipitation is 30%.

Saturday Night

A chance of showers before 8pm. Partly cloudy, with a low around 62. Chance of precipitation is 30%.

Sunday

Mostly sunny, with a high near 81.

Sunday Night

Mostly clear, with a low around 61.

Labor Day

Sunny, with a high near 82.