Potomac River - Colton Point Weather Forecast

    • 50
    • 56

    Mostly Cloudy

    • 56
    • 70

    Mostly Cloudy

    • 36
    • 66

    Rain Likely

    • 34
    • 48

    Mostly Sunny

    • 43
    • 55

    Partly Sunny

    • 51
    • 63

    Partly Sunny

Today 25 Mar St. Marys

Mostly sunny. Highs in the upper 50s. South Winds 5 to 10 Mph.

Tonight 25 Mar St. Marys

Mostly cloudy. Lows in the upper 40s. South Winds 5 to 10 Mph.

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Potomac River - Colton Point Temperature Statistics

March Temperature

St Marys County Airport (12.4 miles)

  • Lowest 18 March, 2026

    26.4 °F

  • Average March

    51.5 °F

  • Highest 11 March, 2026

    85.8 °F

Climate (2021–Present)

St Marys County Airport (12.4 miles)

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  • Average Low 2021–2026

    49.3 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    66.6 °F
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