Potomac River - Weir Creek Entrance Weather Forecast

    • 74
    • 90

    Becoming Sunny

    • 77
    • 95

    Mostly Sunny

    • 80
    • 97

    Hot

    • 79
    • 99

    Hot

    • 77
    • 96

    Slight Chance Thunderstorms

    • 77
    • 93

    Chance Thunderstorms

Today 21 Jun Charles

Sunny. Highs in the lower 90s. Southwest Winds around 5 Mph.

Tonight 21 Jun Charles

Mostly clear. Lows in the lower 70s. South Winds 5 to 10 Mph.

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Potomac River - Weir Creek Entrance Temperature Statistics

June Temperature

St Marys County Airport (19.9 miles)

  • Lowest 1 June, 2025

    46.4 °F

  • Average June

    71.8 °F

  • Highest 18 June, 2025

    89.6 °F

Climate (2020–Present)

St Marys County Airport (19.9 miles)

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  • Average Low 2020–2025

    49.6 °F

  • Average 2020–2025

    58 °F

  • Average High 2020–2025

    66.7 °F
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