Potomac River - Sandyland Beach Weather Forecast

    • 53
    • 57

    Rain Showers

    • 35
    • 65

    Rain Showers

    • 29
    • 39

    Partly Sunny

    • 35
    • 38

    Mostly Cloudy

    • 40
    • 48

    Partly Sunny

    • 44
    • 53

    Partly Sunny

Today 15 Mar St. Marys

Partly sunny. Highs in the upper 50s. Southeast Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 15 Mar St. Marys

Showers. Lows in the lower 50s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

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  • Temperature Real-Time

Potomac River - Sandyland Beach Temperature Statistics

March Temperature

St Marys County Airport (8.1 miles)

  • Lowest 2 March, 2026

    31.5 °F

  • Average March

    52.4 °F

  • Highest 11 March, 2026

    85.8 °F

Climate (2021–Present)

St Marys County Airport (8.1 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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