Potomac River - Shipping Point Weather Forecast

    • 66
    • 82

    Increasing Clouds

    • 66
    • 87

    Slight Chance Thunderstorms

    • 69
    • 91

    Mostly Sunny

    • 70
    • 91

    Mostly Sunny

    • 63
    • 92

    Chance Thunderstorms

    • 57
    • 72

    Chance Rain Showers

Today 16 May Charles

Sunny. Highs in the lower 80s. Southwest Winds 5 to 10 Mph.

Tonight 16 May Charles

Mostly cloudy. Lows in the mid 60s. Southwest Winds 5 to 10 Mph.

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Potomac River - Shipping Point Temperature Statistics

May Temperature

St Marys County Airport (15.5 miles)

  • Lowest 1 May, 2026

    39.9 °F

  • Average May

    59.8 °F

  • Highest 5 May, 2026

    83.7 °F

Climate (2021–Present)

St Marys County Airport (15.5 miles)

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  • Average Low 2021–2026

    49.3 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    66.7 °F
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