Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

62°F

17°C

Humidity	94%
Wind Speed	Calm
Barometer	29.77 in (1008.3 mb)
Dewpoint	60°F (16°C)
Visibility	10.00 mi
Last update	17 Jun 5:55 am EDT

More Information:

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

Extended Forecast for

Potomac Heights MD

Today
High: 88 °F
Sunny
Tonight
Low: 71 °F
Partly Cloudy
Thursday
High: 95 °F
Mostly Sunny
Thursday Night
Low: 69 °F
Slight Chance
T-storms then
Chance
Showers
Juneteenth
High: 86 °F
Chance
Showers
Friday Night
Low: 63 °F
Mostly Clear
Saturday
High: 85 °F
Sunny
Saturday Night
Low: 62 °F
Clear
Sunday
High: 89 °F
Sunny

Detailed Forecast

Today

Sunny, with a high near 88. Calm wind becoming southwest 5 to 7 mph in the afternoon.

Tonight

Partly cloudy, with a low around 71. South wind 6 to 9 mph, with gusts as high as 18 mph.

Thursday

Mostly sunny, with a high near 95. Heat index values as high as 100. Southwest wind 13 to 16 mph, with gusts as high as 28 mph.

Thursday Night

A slight chance of showers and thunderstorms, then a chance of showers after 11pm. Mostly cloudy, with a low around 69. Southwest wind 5 to 8 mph. Chance of precipitation is 40%.

Juneteenth

A chance of showers before 2pm. Mostly sunny, with a high near 86. Northwest wind 3 to 7 mph. Chance of precipitation is 30%.

Friday Night

Mostly clear, with a low around 63.

Saturday

Sunny, with a high near 85.

Saturday Night

Clear, with a low around 62.

Sunday

Sunny, with a high near 89.

Sunday Night

A slight chance of showers and thunderstorms, then a chance of showers after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

Monday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 89. Chance of precipitation is 70%.

Monday Night

Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

Tuesday

A slight chance of showers. Mostly sunny, with a high near 86. Chance of precipitation is 20%.