Potomac River - Long Point Weather Forecast

    • 62
    • 69

    Rain Showers

    • 60
    • 68

    Rain Showers Likely

    • 56
    • 69

    Slight Chance Rain Showers

    • 55
    • 68

    Partly Sunny

    • 56
    • 70

    Partly Sunny

    • 57
    • 72

    Partly Sunny

Today 22 Sep St. Marys

Showers with a slight chance of Thunderstorms in the Morning, then Showers likely with a chance of Thunderstorms in the afternoon. Patchy fog. Highs in the upper 60s. Northeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 80 percent.

Tonight 22 Sep St. Marys

Patchy fog in the evening. Showers likely with a slight chance of Thunderstorms in the Evening, then Showers likely after midnight. Lows in the lower 60s. Northeast Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 70 percent.

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Potomac River - Long Point Temperature Statistics

September Temperature

St Marys County Airport (10.6 miles)

  • Lowest 15 September, 2026

    53.2 °F

  • Average September

    75.2 °F

  • Highest 1 September, 2026

    93.9 °F

Climate (2021–2026)

St Marys County Airport (10.6 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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