Potomac River - Medleys Creek Entrance Weather Forecast

    • 23
    • 34

    Breezy

    • 28
    • 33

    Partly Sunny

    • 35
    • 38

    Mostly Sunny

    • 38
    • 51

    Partly Sunny

    • 46
    • 56

    Rain Likely

    • 34
    • 50

    Partly Sunny

Today 14 Dec St. Marys

Mostly cloudy late this Morning, then becoming mostly sunny. A chance of snow late this morning. Snow accumulation around an inch possible. Brisk with Highs in the lower 30s. Temperature falling into the mid 20s this afternoon. Northwest Winds 15 to 25 Mph with Gusts up to 35 Mph. Chance of snow 50 percent.

Tonight 14 Dec St. Marys

Mostly clear and Blustery. Lows around 18. Northwest Winds 15 to 25 Mph with Gusts up to 40 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Medleys Creek Entrance Temperature Statistics

December Temperature

St Marys County Airport (8.1 miles)

  • Lowest 9 December, 2025

    21 °F

  • Average December

    34.7 °F

  • Highest 4 December, 2025

    48.2 °F

Climate (2020–Present)

St Marys County Airport (8.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    49.5 °F

  • Average 2020–2025

    58 °F

  • Average High 2020–2025

    66.7 °F
Get WillyWeather+ to remove ads