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Widespread Showers and Thunderstorms in Southern California and the Southern Plains into the Mississippi Valley

Isolated strong to severe thunderstorms and widespread heavy rainfall are possible across the southern Plains into Arkansas. Widespread showers with a slight chance of thunderstorms are possible across southern California. Urban flooding, rock and mudslides as well as minor debris flows near burn scars are possible. Read More >

Current conditions at

Patuxent River, Naval Air Station (KNHK)

Lat: 38.28°NLon: 76.41°WElev: 39ft.

Overcast

49°F

9°C

Humidity 83%
Wind Speed N 3 mph
Barometer 30.16 in (1021.2 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 20 Nov 10:52 pm EST
Extended Forecast for

Great Mills MD

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of rain, mainly after 1pm. Mostly cloudy, with a high near 59. Calm wind becoming south around 5 mph. Chance of precipitation is 40%.

    High: 59 °F

    Chance Rain

  • Friday Night

    Friday Night: Rain. Low around 49. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Rain

  • Saturday

    Saturday: A chance of rain, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 59. North wind 6 to 10 mph. Chance of precipitation is 50%.

    High: 59 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36. North wind around 6 mph.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 45. Calm wind.
Friday
A chance of rain, mainly after 1pm. Mostly cloudy, with a high near 59. Calm wind becoming south around 5 mph. Chance of precipitation is 40%.
Friday Night
Rain. Low around 49. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A chance of rain, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 59. North wind 6 to 10 mph. Chance of precipitation is 50%.
Saturday Night
Mostly clear, with a low around 36. North wind around 6 mph.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 40.
Monday
Sunny, with a high near 59.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
A chance of rain. Mostly cloudy, with a high near 61. Chance of precipitation is 30%.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Wednesday
A chance of rain. Mostly cloudy, with a high near 66. Chance of precipitation is 40%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 43. Chance of precipitation is 30%.
Thanksgiving Day
Mostly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Great Mills MD
 38.25°N 76.51°W (Elev. 49 ft)
Last Update:
9:52 pm EST Nov 20, 2025
Forecast Valid:
11pm EST Nov 20, 2025-6pm EST Nov 27, 2025
 
Forecast Discussion
 
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Additional Resources

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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