Potomac River - Bullock Island Weather Forecast

    • 79
    • 92

    Mostly Sunny

    • 77
    • 92

    Partly Sunny

    • 76
    • 88

    Slight Chance Thunderstorms

    • 76
    • 88

    Rain Showers Likely

    • 75
    • 85

    Chance Thunderstorms

    • 76
    • 85

    Slight Chance Thunderstorms

Today 15 Jul St. Marys

Sunny, hot with Highs in the upper 90s. West Winds 5 to 10 Mph.

Tonight 15 Jul St. Marys

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 70s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Potomac River - Bullock Island Temperature Statistics

July Temperature

St Marys County Airport (13.7 miles)

  • Lowest 13 July, 2026

    63.9 °F

  • Average July

    80.3 °F

  • Highest 3 July, 2026

    100 °F

Climate (2021–2026)

St Marys County Airport (13.7 miles)

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  • Average Low 2021–2026

    49.4 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    66.8 °F
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