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

60°F

16°C

Humidity 63%
Wind Speed Calm
Barometer 29.96 in (1014.8 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 10 Mar 11:55 pm EDT
Extended Forecast for

Saint Charles MD

  • Overnight

    Overnight: Partly cloudy, with a low around 58. South wind around 7 mph.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 80. South wind 7 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 4am, then a slight chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 46. South wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 46 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers, mainly before 2pm. High near 56. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A chance of showers before 8pm. Mostly clear, with a low around 32. Northwest wind 3 to 8 mph. Chance of precipitation is 30%.

    Low: 32 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 54. Breezy.

    High: 54 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 58. South wind around 7 mph.
Wednesday
A chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 80. South wind 7 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 4am, then a slight chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 46. South wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Thursday
Showers, mainly before 2pm. High near 56. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A chance of showers before 8pm. Mostly clear, with a low around 32. Northwest wind 3 to 8 mph. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 54. Breezy.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
Mostly cloudy, with a high near 67.
Sunday Night
Showers. Low around 51. Chance of precipitation is 80%.
Monday
Showers. High near 63. Chance of precipitation is 80%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Charles MD
 38.59°N 76.93°W (Elev. 197 ft)
Last Update:
10:53 pm EDT Mar 10, 2026
Forecast Valid:
12am EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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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