Severe Thunderstorms in the Central U.S.; Heavy to Excessive Rainfall in the Ohio Valley and Central Appalachians

Severe thunderstorms producing damaging winds, hail, and a few tornadoes are expected through Tuesday across parts of the central Plains and lower to mid Missouri Valley. Heavy to excessive rainfall could produce flooding across portions of the Ohio Valley into the Central Appalachians through Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fog/Mist

69°F

21°C

Humidity	96%
Wind Speed	Calm
Barometer	29.98 in (1015.5 mb)
Dewpoint	67°F (19°C)
Visibility	2.75 mi
Last update	17 Jun 4:55 am EDT

More Information:

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

Extended Forecast for

2 Miles NNW Potomac Heights MD

Flood Watch June 17, 11:00am until June 17, 10:00pm

Click here for hazard details and duration

Flood Watch

Overnight
Low: 68 °F
Chance
Showers
Tuesday
High: 81 °F
Chance
Showers and
Patchy Fog
then Slight
Chance
T-storms
Tuesday Night
Low: 74 °F
Chance
T-storms
Wednesday
High: 87 °F
Slight Chance
Showers then
Showers
Likely
Wednesday Night
Low: 77 °F
Showers
Likely then
Mostly Clear
Juneteenth
High: 89 °F
Sunny then
Chance
T-storms
Thursday Night
Low: 70 °F
Chance
T-storms then
Partly Cloudy
Friday
High: 84 °F
Sunny
Friday Night
Low: 72 °F
Partly Cloudy

Detailed Forecast

Overnight

A chance of showers. Cloudy, with a low around 68. Light east wind. Chance of precipitation is 30%.

Tuesday

A chance of rain before 11am, then a slight chance of showers and thunderstorms after 2pm. Patchy fog between 7am and 9am. Otherwise, mostly cloudy, with a high near 81. South wind 3 to 5 mph. Chance of precipitation is 30%.

Tuesday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 74. Southeast wind around 6 mph. Chance of precipitation is 40%.

Wednesday

Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly sunny, with a high near 87. Southwest wind 7 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Showers likely and possibly a thunderstorm before 8pm. Mostly clear, with a low around 77. Southwest wind around 7 mph. Chance of precipitation is 60%.

Juneteenth

A chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Chance of precipitation is 50%.

Thursday Night

A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70. Chance of precipitation is 30%.

Friday

Sunny, with a high near 84.

Friday Night

Partly cloudy, with a low around 72.

Saturday

Sunny, with a high near 88.

Saturday Night

Partly cloudy, with a low around 76.