Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Mostly Cloudy

80°F

27°C

Humidity	39%
Wind Speed	E 8 mph
Barometer	30.26 in (1024.5 mb)
Dewpoint	53°F (12°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	29 Aug 11:52 am EDT

More Information:

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

Extended Forecast for

Mc Lean VA

This Afternoon
High: 85 °F
Mostly Sunny
Tonight
Low: 67 °F
Mostly Clear
Sunday
High: 90 °F
Mostly Sunny
then Slight
Chance
T-storms
Sunday Night
Low: 73 °F
Mostly Cloudy
Monday
High: 92 °F
Partly Sunny
Monday Night
Low: 74 °F
Slight Chance
T-storms then
Slight Chance
Showers
Tuesday
High: 94 °F
Partly Sunny
Tuesday Night
Low: 75 °F
Slight Chance
T-storms
Wednesday
High: 95 °F
Mostly Sunny
then Slight
Chance
T-storms

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 85. East wind around 5 mph.

Tonight

Mostly clear, with a low around 67. Southeast wind 3 to 6 mph.

Sunday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. South wind 3 to 8 mph. Chance of precipitation is 20%.

Sunday Night

Mostly cloudy, with a low around 73. South wind 3 to 6 mph.

Monday

Partly sunny, with a high near 92. Calm wind becoming northwest around 6 mph in the afternoon.

Monday 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 74. Chance of precipitation is 20%.

Tuesday

Partly sunny, with a high near 94.

Tuesday Night

A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75. Chance of precipitation is 20%.

Wednesday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 20%.

Wednesday Night

A slight chance of showers and thunderstorms, then a chance of showers after 8pm. Partly cloudy, with a low around 76. Chance of precipitation is 30%.

Thursday

A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 30%.

Thursday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 30%.

Friday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 20%.