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

39°F

4°C

Humidity 54%
Wind Speed SW 7 mph
Barometer 30.19 in
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 12 Jan 9:35 pm EST
Extended Forecast for

3 Miles WNW Chaptico MD

  • Tonight

    Tonight: Mostly clear, with a low around 31. South wind 5 to 7 mph becoming calm after midnight.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 50. Calm wind becoming south 5 to 9 mph in the morning.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39. Southwest wind 8 to 11 mph.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain after 1pm. Mostly cloudy, with a high near 52. Southwest wind 6 to 8 mph. Chance of precipitation is 20%.

    High: 52 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 1am. Mostly cloudy, with a low around 30. South wind 6 to 9 mph becoming northwest after midnight. Chance of precipitation is 60%.

    Low: 30 °F

    Rain Likely

  • Thursday

    Thursday: A chance of rain before 4pm, then a slight chance of snow. Partly sunny, with a high near 37. Chance of precipitation is 30%.

    High: 37 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 35.

    High: 35 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 31. South wind 5 to 7 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 50. Calm wind becoming south 5 to 9 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 39. Southwest wind 8 to 11 mph.
Wednesday
A slight chance of rain after 1pm. Mostly cloudy, with a high near 52. Southwest wind 6 to 8 mph. Chance of precipitation is 20%.
Wednesday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 30. South wind 6 to 9 mph becoming northwest after midnight. Chance of precipitation is 60%.
Thursday
A chance of rain before 4pm, then a slight chance of snow. Partly sunny, with a high near 37. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 19.
Friday
Sunny, with a high near 35.
Friday Night
Mostly clear, with a low around 27.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
A chance of snow. Partly sunny, with a high near 36. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 18.
M.L.King Day
Sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Chaptico MD
 38.38°N 76.83°W (Elev. 98 ft)
Last Update:
9:31 pm EST Jan 12, 2026
Forecast Valid:
9pm EST Jan 12, 2026-6pm EST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation