Potomac River - Gum Bar Point Weather Forecast

    • 69
    • 79

    Partly Sunny

    • 68
    • 85

    Chance Thunderstorms

    • 66
    • 75

    Chance Rain Showers

    • 62
    • 71

    Chance Rain Showers

    • 62
    • 68

    Chance Rain Showers

    • 60
    • 67

    Chance Rain Showers

    • 59
    • 67

    Slight Chance Rain Showers

Today 19 Sep Westmoreland

Partly sunny. Highs in the lower 70s.

Tonight 19 Sep Westmoreland

Partly cloudy. Lows in the upper 60s. Southeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

Potomac River - Gum Bar Point Temperature Statistics

September Temperature

St Marys County Airport (23 miles)

  • Lowest 15 September, 2026

    53.2 °F

  • Average September

    75.3 °F

  • Highest 1 September, 2026

    93.9 °F

Climate (2021–2026)

St Marys County Airport (23 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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