Potomac River - Shipping Point Weather Forecast

    • 63
    • 77

    Decreasing Clouds

    • 66
    • 81

    Partly Sunny

    • 70
    • 85

    Mostly Sunny

    • 69
    • 84

    Partly Sunny

    • 68
    • 74

    Chance Rain Showers

    • 62
    • 71

    Chance Rain Showers

Today 29 Sep Charles

Mostly sunny. Highs in the upper 70s. Northwest Winds around 5 Mph.

Tonight 29 Sep Charles

Partly cloudy. Lows in the lower 60s. Light and variable Winds.

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Potomac River - Shipping Point Temperature Statistics

September Temperature

St Marys County Airport (15.5 miles)

  • Lowest 15 September, 2026

    53.2 °F

  • Average September

    72.6 °F

  • Highest 1 September, 2026

    93.9 °F

Climate (2021–2026)

St Marys County Airport (15.5 miles)

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  • Average Low 2021–2026

    49.5 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    67 °F
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