Potomac River - Whites Neck Creek Entrance Weather Forecast

    • 25
    • 32

    Mostly Sunny

    • 33
    • 38

    Mostly Sunny

    • 35
    • 51

    Partly Sunny

    • 42
    • 57

    Rain Likely

    • 29
    • 47

    Mostly Sunny

    • 41
    • 44

    Partly Sunny

Today 15 Dec St. Marys

Mostly sunny. Highs in the lower 30s. West Winds 5 to 10 Mph.

Tonight 15 Dec St. Marys

Partly cloudy in the Evening, then becoming mostly clear. Lows in the lower 20s. Southwest Winds 5 to 10 Mph.

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Potomac River - Whites Neck Creek Entrance Temperature Statistics

December Temperature

St Marys County Airport (13.7 miles)

  • Lowest 9 December, 2025

    21 °F

  • Average December

    34.9 °F

  • Highest 4 December, 2025

    48.2 °F

Climate (2020–Present)

St Marys County Airport (13.7 miles)

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  • Average Low 2020–2025

    49.5 °F

  • Average 2020–2025

    58 °F

  • Average High 2020–2025

    66.7 °F
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