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

Patuxent River, Naval Air Station (KNHK)

Lat: 38.28°NLon: 76.41°WElev: 39ft.

A Few Clouds

40°F

4°C

Humidity 70%
Wind Speed SE 5 mph
Barometer 30.22 in (1023.2 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 12 Jan 4:52 pm EST
Extended Forecast for

Great Mills MD

  • Tonight

    Tonight: Mostly clear, with a low around 30. Southwest wind 5 to 7 mph becoming calm after midnight.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 50. Calm wind becoming south 5 to 8 mph in the morning.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39. Southwest wind around 9 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 52. Southwest wind 6 to 8 mph.

    High: 52 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Rain likely before 4am, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 29. Light and variable wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 29 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of rain and snow, mainly before 1pm. Partly sunny, with a high near 39. Chance of precipitation is 30%.

    High: 39 °F

    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 37.

    High: 37 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 30. Southwest wind 5 to 7 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 50. Calm wind becoming south 5 to 8 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 39. Southwest wind around 9 mph, with gusts as high as 20 mph.
Wednesday
Mostly cloudy, with a high near 52. Southwest wind 6 to 8 mph.
Wednesday Night
Rain likely before 4am, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 29. Light and variable wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
A chance of rain and snow, mainly before 1pm. Partly sunny, with a high near 39. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 19.
Friday
Sunny, with a high near 37.
Friday Night
Mostly clear, with a low around 28.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Partly sunny, with a high near 38.
Sunday Night
Mostly clear, with a low around 18.
M.L.King Day
Sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Great Mills MD
 38.27°N 76.5°W (Elev. 98 ft)
Last Update:
3:53 pm EST Jan 12, 2026
Forecast Valid:
5pm 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