Severe Thunderstorms in the Ohio and Tennessee Valleys; Flash Flooding Possible in the Southwest

Scattered damaging winds, isolated severe hail, and a brief tornado or two are possible from the Upper Ohio to Tennessee Valleys during the late afternoon and evening. Across the Southwest, monsoonal moisture will continue to bring heavy rain and a threat for isolated to scattered flash flooding through Saturday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

89°F

32°C

Humidity	55%
Wind Speed	S 3 mph
Barometer	29.91 in (1013.1 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	95°F (35°C)
Last update	6 Sep 12:55 pm EDT

More Information:

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

Extended Forecast for

2 Miles WNW Saint Charles MD

This Afternoon
High: 89 °F
Showers
Tonight
Low: 58 °F
Showers and
Patchy Fog
then Chance
Showers and
Patchy Fog
Sunday
High: 74 °F
Chance
Showers then
Mostly Sunny
Sunday Night
Low: 53 °F
Mostly Clear
Monday
High: 75 °F
Sunny
Monday Night
Low: 52 °F
Partly Cloudy
Tuesday
High: 74 °F
Mostly Sunny
Tuesday Night
Low: 57 °F
Mostly Cloudy
Wednesday
High: 75 °F
Mostly Cloudy

Detailed Forecast

This Afternoon

Scattered showers and thunderstorms between 2pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 89. Southwest wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms before 3am, then a slight chance of showers after 5am. Patchy fog between 11pm and 1am. Low around 58. North wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

A chance of showers, mainly before 10am. Cloudy through mid morning, then gradual clearing, with a high near 74. Northwest wind around 7 mph. Chance of precipitation is 30%.

Sunday Night

Mostly clear, with a low around 53. Light and variable wind becoming northwest around 5 mph after midnight.

Monday

Sunny, with a high near 75. North wind around 6 mph.

Monday Night

Partly cloudy, with a low around 52.

Tuesday

Mostly sunny, with a high near 74.

Tuesday Night

Mostly cloudy, with a low around 57.

Wednesday

Mostly cloudy, with a high near 75.