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

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

80°F

27°C

Humidity 51%
Wind Speed Calm
Barometer 29.86 in (1011.4 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 15 Apr 7:55 pm EDT
Extended Forecast for

Saint Charles MD

  • Tonight

    Tonight: Partly cloudy, with a low around 68. Southwest wind 6 to 8 mph.

    Low: 68 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 90. Southwest wind 6 to 10 mph.

    High: 90 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 67. Southwest wind 6 to 8 mph becoming west after midnight. Chance of precipitation is 20%.

    Low: 67 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A chance of showers, mainly after 8am. Partly sunny, with a high near 83. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 83 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. Light northeast wind.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Partly cloudy, with a low around 40. Chance of precipitation is 30%.

    Low: 40 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 68. Southwest wind 6 to 8 mph.
Thursday
Mostly sunny, with a high near 90. Southwest wind 6 to 10 mph.
Thursday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 67. Southwest wind 6 to 8 mph becoming west after midnight. Chance of precipitation is 20%.
Friday
A chance of showers, mainly after 8am. Partly sunny, with a high near 83. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 60. Light northeast wind.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Sunday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Sunday Night
A chance of showers before 8pm. Partly cloudy, with a low around 40. Chance of precipitation is 30%.
Monday
Sunny, with a high near 57.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Mostly sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Charles MD
 38.59°N 76.93°W (Elev. 197 ft)
Last Update:
7:53 pm EDT Apr 15, 2026
Forecast Valid:
8pm EDT Apr 15, 2026-6pm EDT Apr 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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