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 >

Hazardous Weather Conditions

Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Mostly Cloudy

81°F

27°C

Humidity	74%
Wind Speed	SE 5 mph
Barometer	29.95 in (1014.2 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	85°F (29°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

Seven Corners VA

Severe T-storm Watch August 27, 09:17pm until August 27, 10:00pm

Click here for hazard details and duration

...

Severe T-storm Watch August 27, 09:17pm until August 27, 10:00pm
NOW until 10:00pm Thu
Severe T-storm Watch
Tonight
Low: 70 °F
Severe
Thunderstorms
then
Scattered
Showers and
Patchy Fog
Friday
High: 87 °F
Patchy Fog
then Slight
Chance
T-storms
Friday Night
Low: 69 °F
Slight Chance
T-storms then
Slight Chance
Showers
Saturday
High: 87 °F
Mostly Sunny
Saturday Night
Low: 70 °F
Mostly Clear
Sunday
High: 90 °F
Sunny
Sunday Night
Low: 73 °F
Partly Cloudy
Monday
High: 93 °F
Sunny

Detailed Forecast

Tonight

Showers and thunderstorms likely before 3am, then scattered showers. Some of the storms could be severe. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 70. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 87. Calm wind becoming north around 6 mph in the morning. Chance of precipitation is 20%.

Friday Night

A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 69. Light north wind. Chance of precipitation is 20%.

Saturday

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

Saturday Night

Mostly clear, with a low around 70. Southeast wind around 5 mph becoming calm in the evening.

Sunday

Sunny, with a high near 90.

Sunday Night

Partly cloudy, with a low around 73.

Monday

Sunny, with a high near 93.

Monday Night

Partly cloudy, with a low around 75.