Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Partly Cloudy

70°F

21°C

Humidity	79%
Wind Speed	S 6 mph
Barometer	30.10 in (1019.3 mb)
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Last update	26 Aug 7:52 am EDT

More Information:

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

Extended Forecast for

McLean VA

Today
High: 87 °F
Mostly Sunny
Tonight
Low: 71 °F
Mostly Cloudy
then Slight
Chance
T-storms
Thursday
High: 89 °F
Partly Sunny
then Chance
T-storms
Thursday Night
Low: 69 °F
Severe
Thunderstorms
then Chance
Showers
Friday
High: 86 °F
Partly Sunny
then Chance
Showers
Friday Night
Low: 69 °F
Chance
Showers
Saturday
High: 85 °F
Partly Sunny
Saturday Night
Low: 69 °F
Partly Cloudy
Sunday
High: 88 °F
Mostly Sunny

Detailed Forecast

Today

Mostly sunny, with a high near 87. Calm wind becoming south 5 to 9 mph in the afternoon.

Tonight

A slight chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 71. South wind around 9 mph. Chance of precipitation is 20%.

Thursday

A chance of showers and thunderstorms, mainly between 2pm and 5pm. Partly sunny, with a high near 89. South wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.

Thursday Night

Showers and thunderstorms likely, mainly before 8pm. Some of the storms could be severe. Mostly cloudy, with a low around 69. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Friday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. North wind 3 to 5 mph. Chance of precipitation is 30%.

Friday Night

A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

Saturday

Partly sunny, with a high near 85.

Saturday Night

Partly cloudy, with a low around 69.

Sunday

Mostly sunny, with a high near 88.

Sunday Night

Mostly clear, with a low around 71.

Monday

Sunny, with a high near 92.

Monday Night

Partly cloudy, with a low around 74.