Potomac River - Kingcopsico Point Weather Forecast

    • 28
    • 41

    Increasing Clouds

    • 31
    • 38

    Slight Chance Snow

    • 30
    • 45

    Rain/Snow Likely

    • 21
    • 34

    Mostly Sunny

    • 24
    • 33

    Partly Sunny

    • 28
    • 39

    Partly Sunny

Today 11 Dec Westmoreland

Sunny. Highs in the lower 40s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 11 Dec Westmoreland

Clear in the Evening, then becoming partly cloudy. Lows in the mid 20s. West Winds 5 to 10 Mph.

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  • Temperature Real-Time

Potomac River - Kingcopsico Point Temperature Statistics

December Temperature

St Marys County Airport (13 miles)

  • Lowest 9 December, 2025

    21 °F

  • Average December

    34.1 °F

  • Highest 4 December, 2025

    48.2 °F

Climate (2020–Present)

St Marys County Airport (13 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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