Potomac River - Cobb Point Weather Forecast

    • 41
    • 52

    Mostly Cloudy

    • 44
    • 53

    Drizzle

    • 60
    • 70

    Rain Showers Likely

    • 48
    • 72

    Rain Showers

    • 40
    • 58

    Mostly Sunny

    • 50
    • 65

    Mostly Sunny

    • 52
    • 73

    Partly Sunny

Today 13 Mar Charles

Partly sunny. Highs in the mid 50s. Northeast Winds around 5 Mph.

Tonight 13 Mar Charles

Mostly cloudy. Patchy fog after midnight. Lows around 40. Northeast Winds around 5 Mph.

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Potomac River - Cobb Point Temperature Statistics

March Temperature

St Marys County Airport (16.2 miles)

  • Lowest 3 March, 2025

    21.2 °F

  • Average March

    44.2 °F

  • Highest 1 March, 2025

    68 °F

Climate (2020–Present)

St Marys County Airport (16.2 miles)

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  • Average Low 2020–2025

    49.4 °F

  • Average 2020–2025

    57.8 °F

  • Average High 2020–2025

    66.5 °F
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