Potomac River - Shipping Point Weather Forecast

    • 37
    • 51

    Slight Chance Rain Showers

    • 32
    • 54

    Chance Rain Showers

    • 35
    • 39

    Rain

    • 39
    • 47

    Mostly Cloudy

    • 36
    • 51

    Chance Rain

    • 24
    • 44

    Mostly Sunny

Today 24 Dec Charles

Sunny. Highs in the lower 50s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 24 Dec Charles

Mostly cloudy. Lows in the mid 30s. Northeast Winds around 5 Mph, becoming southeast after midnight.

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Potomac River - Shipping Point Temperature Statistics

December Temperature

St Marys County Airport (15.5 miles)

  • Lowest 15 December, 2025

    14.9 °F

  • Average December

    36.1 °F

  • Highest 19 December, 2025

    59.4 °F

Climate (2020–Present)

St Marys County Airport (15.5 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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