Potomac River - Hollis Marsh Weather Forecast

    • 53
    • 74

    Chance Rain Showers

    • 38
    • 57

    Chance Rain

    • 40
    • 47

    Partly Sunny

    • 46
    • 56

    Mostly Cloudy

    • 50
    • 62

    Chance Rain

    • 39
    • 56

    Chance Rain

Today 22 Mar Westmoreland

Partly sunny. Highs in the lower 80s. South Winds 5 to 10 Mph. Gusts up to 20 Mph in the afternoon.

Tonight 22 Mar Westmoreland

Mostly clear in the Evening, then partly cloudy with a chance of Showers after midnight. Lows in the mid 50s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Real-Time

Potomac River - Hollis Marsh Temperature Statistics

March Temperature

St Marys County Airport (14.9 miles)

  • Lowest 18 March, 2026

    26.4 °F

  • Average March

    50.3 °F

  • Highest 11 March, 2026

    85.8 °F

Climate (2021–Present)

St Marys County Airport (14.9 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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