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

74°F

23°C

Humidity 33%
Wind Speed N 3 mph
Barometer 30.43 in (1013.8 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 26 Mar 12:55 pm EDT
Extended Forecast for

Saint Charles MD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 80. Southwest wind 13 to 15 mph, with gusts as high as 22 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 53. Southwest wind 13 to 15 mph, with gusts as high as 23 mph.

    Low: 53 °F

    Mostly Cloudy

  • Friday

    Friday: Rain. Temperature rising to near 66 by 9am, then falling to around 51 during the remainder of the day. North wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 66 °F⇓

    Rain

  • Friday Night

    Friday Night: Rain, mainly before 8pm. Low around 34. Northwest wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 34 °F

    Rain then
    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 48. Northwest wind 11 to 14 mph, with gusts as high as 22 mph.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 80. Southwest wind 13 to 15 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy, with a low around 53. Southwest wind 13 to 15 mph, with gusts as high as 23 mph.
Friday
Rain. Temperature rising to near 66 by 9am, then falling to around 51 during the remainder of the day. North wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain, mainly before 8pm. Low around 34. Northwest wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Sunny, with a high near 48. Northwest wind 11 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Partly sunny, with a high near 66.
Monday Night
A chance of rain between 8pm and 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Tuesday
A chance of rain. Partly sunny, with a high near 71. Chance of precipitation is 30%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Wednesday
A chance of rain. Partly sunny, with a high near 77. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Charles MD
 38.61°N 76.93°W (Elev. 197 ft)
Last Update:
10:57 am EDT Mar 26, 2026
Forecast Valid:
1pm EDT Mar 26, 2026-6pm EDT Apr 1, 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