Heat and Severe Thunderstorms in the Eastern U.S.

A widespread heat wave will peak over the South and East today, with several dozen temperature records expected along the East Coast. Heat should begin to ease this weekend in the Northeast, while hazardous heat continues over the South. Severe thunderstorms capable of damaging winds are possible across parts of the Appalachians, Mid Atlantic, and Northeast this afternoon and evening. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

92°F

33°C

Humidity	52%
Wind Speed	S 8 mph
Barometer	29.78 in (1008.7 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	100°F (38°C)
Last update	12 Jun 11:55 am EDT

More Information:

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

Extended Forecast for

Accokeek MDSimilar City Names

Heat Advisory until June 12, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory until June 12, 08:00pm
NOW until 8:00pm Fri
Heat Advisory
This Afternoon
High: 89 °F
Severe
Thunderstorms
Tonight
Low: 67 °F
Severe
Thunderstorms
then Partly
Cloudy
Saturday
High: 82 °F
Sunny
Saturday Night
Low: 67 °F
Mostly Clear
Sunday
High: 85 °F
Mostly Sunny
then Showers
Likely
Sunday Night
Low: 66 °F
Showers
Likely then
Slight Chance
T-storms
Monday
High: 76 °F
Mostly Sunny
Monday Night
Low: 62 °F
Mostly Cloudy
then Chance
Showers

Detailed Forecast

This Afternoon

Showers and thunderstorms likely, mainly after 5pm. Some of the storms could be severe. Sunny, with a high near 89. West wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms, mainly before 9pm. Some of the storms could be severe. Low around 67. South wind around 6 mph becoming northwest after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

Sunny, with a high near 82. North wind 3 to 5 mph.

Saturday Night

Mostly clear, with a low around 67. Light south wind.

Sunday

Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 85. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

Sunday Night

Showers likely and possibly a thunderstorm before 11pm, then a slight chance of showers and thunderstorms between 11pm and 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

Monday

Mostly sunny, with a high near 76.

Monday Night

A chance of showers after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

Tuesday

A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 30%.

Tuesday Night

Mostly cloudy, with a low around 62.

Wednesday

Mostly sunny, with a high near 84.

Wednesday Night

A slight chance of showers. Partly cloudy, with a low around 66. Chance of precipitation is 20%.