Potomac River - Haulover Inlet Weather Forecast

    • 66
    • 77

    Mostly Sunny

    • 69
    • 83

    Mostly Sunny

    • 74
    • 86

    Mostly Sunny

    • 71
    • 84

    Slight Chance Thunderstorms

    • 71
    • 79

    Partly Sunny

    • 73
    • 84

    Chance Rain Showers

    • 72
    • 82

    Chance Rain Showers

Today 15 Sep Westmoreland

Sunny. Near steady temperature in the upper 70s. East Winds around 5 Mph.

Tonight 15 Sep Westmoreland

Clear. Lows in the upper 50s. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Haulover Inlet Temperature Statistics

September Temperature

St Marys County Airport (15.5 miles)

  • Lowest 8 September, 2026

    59.5 °F

  • Average September

    76.2 °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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