Heat Wave and Severe Thunderstorms this Independence Day

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Overcast

84°F

29°C

Humidity	57%
Wind Speed	W 13 G 21 mph
Barometer	29.96 in (1014.5 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Heat Index	87°F (31°C)
Last update	4 Jul 8:52 pm EDT

More Information:

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

Extended Forecast for

Washington DC, Reagan National Airport VA

Severe T-storm Watch July 4, 09:21pm until July 4, 10:00pm

Click here for hazard details and duration

...

Severe T-storm Watch July 4, 09:21pm until July 4, 10:00pm
NOW until 10:00pm Sat
Severe T-storm Watch
Tonight
Low: 76 °F
Severe
Thunderstorms
then Chance
Showers
Sunday
High: 96 °F
Mostly Sunny
then Chance
T-storms
Sunday Night
Low: 72 °F
Showers then
Chance
Showers
Monday
High: 85 °F
Showers
Likely then
Showers
Monday Night
Low: 70 °F
Showers
Tuesday
High: 83 °F
Chance
Showers then
Showers
Likely
Tuesday Night
Low: 68 °F
Showers
Likely then
Slight Chance
T-storms
Wednesday
High: 86 °F
Mostly Sunny

Detailed Forecast

Tonight

Showers likely and possibly a thunderstorm before 10pm, then scattered showers and thunderstorms between 10pm and 1am, then a chance of showers after 1am. Some of the storms could be severe. Mostly cloudy, with a low around 76. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

A chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 96. Heat index values as high as 105. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%.

Sunday Night

Showers and thunderstorms before 2am, then a chance of showers. Low around 72. Northeast wind around 6 mph becoming calm after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Monday

Showers likely, then showers and possibly a thunderstorm after 11am. High near 85. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night

Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 70. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.

Tuesday

A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.

Tuesday Night

Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

Wednesday

Mostly sunny, with a high near 86.

Wednesday Night

Partly cloudy, with a low around 70.

Thursday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 30%.

Thursday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 30%.

Friday

A chance of showers and thunderstorms. Partly sunny, with a high near 94. Chance of precipitation is 40%.

Friday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.