Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

A Few Clouds

75°F

24°C

Humidity	70%
Wind Speed	SE 9 mph
Barometer	29.65 in (1004.3 mb)
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Last update	18 Jun 5:55 am EDT

More Information:

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

Extended Forecast for

2 Miles N Accokeek MD

Today
High: 94 °F
Breezy.
Partly Sunny
then Chance
T-storms
Tonight
Low: 70 °F
Partly Cloudy
then Chance
T-storms
Juneteenth
High: 83 °F
Showers
Likely then
Mostly Sunny
Friday Night
Low: 64 °F
Clear
Saturday
High: 85 °F
Sunny
Saturday Night
Low: 65 °F
Mostly Clear
Sunday
High: 87 °F
Mostly Sunny
Sunday Night
Low: 71 °F
Slight Chance
T-storms then
Chance
Showers
Monday
High: 86 °F
Showers

Detailed Forecast

Today

A chance of showers and thunderstorms, mainly between 3pm and 5pm. Mostly sunny, with a high near 94. Breezy, with a southwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 30%.

Tonight

A slight chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Increasing clouds, with a low around 70. West wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 30%.

Juneteenth

Showers and thunderstorms likely before 11am, then a slight chance of showers between 11am and noon. Cloudy through mid morning, then gradual clearing, with a high near 83. Northwest wind 3 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night

Clear, with a low around 64. Northwest wind 5 to 8 mph.

Saturday

Sunny, with a high near 85. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.

Saturday Night

Mostly clear, with a low around 65.

Sunday

Mostly sunny, with a high near 87.

Sunday Night

A slight chance of showers and thunderstorms, then a chance of showers after 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.

Monday

Showers likely, then showers and possibly a thunderstorm after 2pm. High near 86. Chance of precipitation is 80%.

Monday Night

Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 65. Chance of precipitation is 80%.

Tuesday

Mostly sunny, with a high near 83.

Tuesday Night

Mostly clear, with a low around 64.

Wednesday

Mostly sunny, with a high near 85.