Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Thunderstorm Light Rain

76°F

24°C

Humidity	77%
Wind Speed	NE 5 mph
Barometer	29.95 in (1014.0 mb)
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Heat Index	77°F (25°C)
Last update	27 Aug 8:52 pm EDT

More Information:

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

Extended Forecast for

Sterling VASimilar City Names

Tonight
Low: 68 °F
Severe
Thunderstorms
then
Scattered
Showers and
Patchy Fog
Friday
High: 86 °F
Patchy Fog
then Partly
Sunny
Friday Night
Low: 67 °F
Mostly Cloudy
Saturday
High: 87 °F
Mostly Sunny
Saturday Night
Low: 68 °F
Mostly Clear
Sunday
High: 89 °F
Sunny
Sunday Night
Low: 70 °F
Partly Cloudy
Monday
High: 92 °F
Sunny
Monday Night
Low: 73 °F
Partly Cloudy

Detailed Forecast

Tonight

Showers and thunderstorms likely before 2am, then isolated showers after 3am. Some of the storms could be severe. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

Patchy fog before 9am. Otherwise, partly sunny, with a high near 86. Calm wind becoming north around 6 mph in the morning.

Friday Night

Mostly cloudy, with a low around 67. Calm wind.

Saturday

Mostly sunny, with a high near 87. North wind 3 to 5 mph.

Saturday Night

Mostly clear, with a low around 68. Southeast wind around 5 mph becoming calm in the evening.

Sunday

Sunny, with a high near 89.

Sunday Night

Partly cloudy, with a low around 70.