Potomac River - Mattox Creek Entrance Weather Forecast

    • 41
    • 52

    Decreasing Clouds

    • 45
    • 54

    Decreasing Clouds

    • 61
    • 73

    Mostly Cloudy

    • 47
    • 74

    Rain Showers

    • 39
    • 60

    Mostly Sunny

    • 49
    • 67

    Mostly Sunny

    • 51
    • 76

    Mostly Cloudy

Today 13 Mar Westmoreland

Mostly cloudy. Highs in the lower 50s. Northeast Winds around 5 Mph.

Tonight 13 Mar Westmoreland

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

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Potomac River - Mattox Creek Entrance Temperature Statistics

March Temperature

St Marys County Airport (23 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 (23 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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