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August 14, 2026: 90 mph microburst confirmed in Charlottesville

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

80°F

27°C

Humidity	56%
Wind Speed	S 5 mph
Barometer	29.99 in (1015.8 mb)
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Heat Index	81°F (27°C)
Last update	21 Aug 5:55 pm EDT

More Information:

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

Extended Forecast for

Mount Vernon VA

Tonight
Low: 66 °F
Isolated
Showers then
Showers
Saturday
High: 79 °F
Showers and
Areas Fog
Saturday Night
Low: 67 °F
Scattered
Showers then
Isolated
Showers
Sunday
High: 85 °F
Mostly Sunny
Sunday Night
Low: 64 °F
Mostly Clear
Monday
High: 84 °F
Mostly Sunny
Monday Night
Low: 63 °F
Mostly Clear
Tuesday
High: 84 °F
Sunny
Tuesday Night
Low: 66 °F
Mostly Clear

Detailed Forecast

Tonight

Isolated showers before 2am, then showers and possibly a thunderstorm between 2am and 5am, then showers after 5am. Low around 66. Light east wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

Showers and possibly a thunderstorm before 2pm, then scattered showers and thunderstorms, mainly between 2pm and 5pm. Areas of fog before 2pm. High near 79. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Scattered showers and thunderstorms between 8pm and 11pm, then isolated showers. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 50%.

Sunday

Mostly sunny, with a high near 85. West wind 3 to 8 mph.

Sunday Night

Mostly clear, with a low around 64. Light northwest wind.

Monday

Mostly sunny, with a high near 84.

Monday Night

Mostly clear, with a low around 63.

Tuesday

Sunny, with a high near 84.

Tuesday Night

Mostly clear, with a low around 66.