Potomac River - Cobb Point Weather Forecast

    • 14
    • 29

    Increasing Clouds

    • 11
    • 26

    Partly Sunny

    • 12
    • 26

    Partly Sunny

    • 10
    • 23

    Chance Snow

    • 15
    • 20

    Chance Snow

    • 17
    • 26

    Slight Chance Snow

    • 19
    • 34

    Partly Sunny

Today 27 Jan Charles

Sunny. Highs in the upper 20s. Southwest Winds 10 to 15 Mph.

Tonight 27 Jan Charles

Mostly cloudy in the Evening, then becoming partly cloudy. Cold with Lows around 11. Northwest Winds 5 to 10 Mph.

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Potomac River - Cobb Point Temperature Statistics

January Temperature

St Marys County Airport (16.2 miles)

  • Lowest 24 January, 2026

    11.3 °F

  • Average January

    37.3 °F

  • Highest 7 January, 2026

    65.7 °F

Climate (2021–Present)

St Marys County Airport (16.2 miles)

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  • Average Low 2021–2026

    49.5 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    66.7 °F
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