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

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

Fair

63°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 63°F (17°C)
Visibility NA
Last update 26 Jul 2:35 am EDT
Extended Forecast for

3 Miles NW Charlotte Hall MD

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 7am. Otherwise, sunny, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 64. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 40%.

    High: 86 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 68. South wind around 6 mph. Chance of precipitation is 40%.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 85. Chance of precipitation is 90%.

    High: 85 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 67. Chance of precipitation is 80%.

    Low: 67 °F

    Showers then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.

    High: 85 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers then
    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 63. Calm wind.
Sunday
Patchy fog before 7am. Otherwise, sunny, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
A chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 64. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 68. South wind around 6 mph. Chance of precipitation is 40%.
Tuesday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 85. Chance of precipitation is 90%.
Tuesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 67. Chance of precipitation is 80%.
Wednesday
A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Thursday
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 83. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 68.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Charlotte Hall MD
 38.51°N 76.83°W (Elev. 148 ft)
Last Update:
2:23 am EDT Jul 26, 2026
Forecast Valid:
2am EDT Jul 26, 2026-6pm EDT Aug 1, 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