Potomac River - Lawson Point Weather Forecast

    • 65
    • 77

    Sunny

    • 65
    • 82

    Mostly Sunny

    • 65
    • 77

    Partly Sunny

    • 63
    • 74

    Partly Sunny

    • 65
    • 76

    Partly Sunny

    • 66
    • 79

    Partly Sunny

    • 65
    • 78

    Mostly Cloudy

Today 18 Sep St. Marys

Sunny. Highs in the upper 70s. West Winds around 5 Mph.

Tonight 18 Sep St. Marys

Mostly clear. Lows in the lower 60s. Southwest Winds around 5 Mph.

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Potomac River - Lawson Point Temperature Statistics

September Temperature

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (3.7 miles)

  • Lowest 1 September, 2025

    55 °F

  • Average September

    69.4 °F

  • Highest 6 September, 2025

    89.1 °F

Climate (2020–Present)

St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity (3.7 miles)

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  • Average Low 2020–2025

    52.3 °F

  • Average 2020–2025

    60.7 °F

  • Average High 2020–2025

    69.2 °F
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