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

Hazardous Weather Outlook

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 SE Accokeek MD

Overnight
Low: 66 °F
Slight Chance
Showers
Tuesday
High: 82 °F
Chance
Showers and
Patchy Fog
then Slight
Chance
T-storms
Tuesday Night
Low: 71 °F
Chance
T-storms
Wednesday
High: 92 °F
Slight Chance
Showers then
Showers
Likely
Wednesday Night
Low: 73 °F
Showers
Likely then
Mostly Clear
Juneteenth
High: 93 °F
Sunny then
Chance
T-storms
Thursday Night
Low: 67 °F
Chance
T-storms then
Chance
Showers
Friday
High: 87 °F
Sunny
Friday Night
Low: 68 °F
Partly Cloudy

Detailed Forecast

Overnight

A slight chance of showers. Cloudy, with a low around 66. Light east wind. Chance of precipitation is 20%.

Tuesday

A chance of rain before 1pm, then a slight chance of showers between 1pm and 2pm, then a slight chance of showers and thunderstorms after 2pm. Patchy fog between 7am and 9am. Otherwise, mostly cloudy, with a high near 82. South wind 3 to 7 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 4am. Mostly cloudy, with a low around 71. Southeast wind around 5 mph. Chance of precipitation is 40%.

Wednesday

Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly sunny, with a high near 92. Southwest wind 6 to 10 mph, with gusts as high as 18 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 73. Southwest wind around 6 mph. Chance of precipitation is 60%.

Juneteenth

A chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Chance of precipitation is 50%.

Thursday Night

A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Partly cloudy, with a low around 67. Chance of precipitation is 30%.

Friday

Sunny, with a high near 87.

Friday Night

Partly cloudy, with a low around 68.

Saturday

Sunny, with a high near 91.

Saturday Night

Partly cloudy, with a low around 73.

Sunday

Sunny, with a high near 96.

Sunday Night

Mostly clear, with a low around 76.