National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

55°F

13°C

Humidity 18%
Wind Speed SE 7 mph
Barometer 30.50 in (1033.1 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 8 Apr 5:55 pm EDT
Extended Forecast for

Mount Vernon VA

Frost Advisory April 9, 12:00am until April 9, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Areas of frost after 3am. Otherwise, mostly clear, with a low around 35. East wind 5 to 7 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

  • Thursday

    Thursday: Areas of frost before 8am. Otherwise, mostly sunny, with a high near 62. Calm wind becoming south around 6 mph in the afternoon.

    High: 62 °F

    Areas Frost
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 42. Southeast wind around 6 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Friday

    Friday: Patchy fog before 9am. Otherwise, sunny, with a high near 75. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 75 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55. South wind around 6 mph becoming southwest after midnight.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
Areas of frost after 3am. Otherwise, mostly clear, with a low around 35. East wind 5 to 7 mph becoming calm in the evening.
Thursday
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 62. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 42. Southeast wind around 6 mph becoming calm in the evening.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 75. Calm wind becoming south 5 to 8 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 55. South wind around 6 mph becoming southwest after midnight.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Partly sunny, with a high near 86.
Monday Night
Mostly cloudy, with a low around 68.
Tuesday
Partly sunny, with a high near 92.
Tuesday Night
Mostly cloudy, with a low around 71.
Wednesday
Mostly sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon VA
 38.74°N 77.11°W (Elev. 49 ft)
Last Update:
4:53 pm EDT Apr 8, 2026
Forecast Valid:
6pm EDT Apr 8, 2026-6pm EDT Apr 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation