MacMahan Island Weather Forecast

    • 59
    • 72

    Increasing Clouds

    • 54
    • 70

    Mostly Sunny

    • 61
    • 64

    Rain Showers Likely

    • 58
    • 73

    Slight Chance Rain Showers

    • 55
    • 65

    Mostly Sunny

    • 57
    • 63

    Mostly Sunny

Today 7 Sep Sagadahoc

Mostly sunny. Highs in the upper 70s. Northwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 7 Sep Sagadahoc

Partly cloudy. Lows in the upper 40s. Light and variable Winds.

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MacMahan Island Temperature Statistics

September Temperature

Wiscasset Airport (8.1 miles)

  • Lowest 1 September, 2026

    51.1 °F

  • Average September

    66.5 °F

  • Highest 4 September, 2026

    82 °F

Climate (2021–2026)

Wiscasset Airport (8.1 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    48.5 °F

  • Average High 2021–2026

    58.1 °F
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