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

34°F

1°C

Humidity 63%
Wind Speed Calm
Barometer 30.17 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 13 Jan 3:55 am EST
Extended Forecast for

3 Miles W Chaptico MD

  • Today

    Today: Sunny, with a high near 50. Light southwest wind becoming south 5 to 10 mph in the morning.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 40. Southwest wind 9 to 13 mph, with gusts as high as 18 mph.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain after 1pm. Increasing clouds, with a high near 53. Southwest wind 6 to 8 mph. Chance of precipitation is 20%.

    High: 53 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 28. South wind 6 to 11 mph becoming northwest 12 to 17 mph after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 28 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of snow before 7am. Partly sunny, with a high near 33. Northwest wind around 17 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 33 °F

    Chance Snow
    then Mostly
    Sunny

  • Thursday Night

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

    Low: 19 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 50. Light southwest wind becoming south 5 to 10 mph in the morning.
Tonight
Partly cloudy, with a low around 40. Southwest wind 9 to 13 mph, with gusts as high as 18 mph.
Wednesday
A slight chance of rain after 1pm. Increasing clouds, with a high near 53. Southwest wind 6 to 8 mph. Chance of precipitation is 20%.
Wednesday Night
Rain likely before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 28. South wind 6 to 11 mph becoming northwest 12 to 17 mph after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
A chance of snow before 7am. Partly sunny, with a high near 33. Northwest wind around 17 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 19.
Friday
Mostly sunny, with a high near 35.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Partly sunny, with a high near 37.
Sunday Night
Partly cloudy, with a low around 21.
M.L.King Day
Sunny, with a high near 35.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Chaptico MD
 38.35°N 76.83°W (Elev. 3 ft)
Last Update:
3:53 am EST Jan 13, 2026
Forecast Valid:
4am EST Jan 13, 2026-6pm EST Jan 19, 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