Heron Island Weather Forecast

    • 36
    • 49

    Mostly Sunny

    • 47
    • 51

    Mostly Sunny

    • 54
    • 58

    Mostly Sunny

    • 44
    • 61

    Mostly Sunny

    • 42
    • 52

    Mostly Sunny

    • 48
    • 54

    Chance Rain Showers

    • 45
    • 57

    Chance Rain Showers

Today 27 Oct Sagadahoc

Partly sunny. A chance of Showers in the morning. Highs in the lower 50s. Chance of rain 40 percent.

Tonight 27 Oct Sagadahoc

Mostly clear. Lows in the lower 20s. Light and variable Winds.

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Heron Island Temperature Statistics

October Temperature

Wiscasset Airport (16.8 miles)

  • Lowest 18 October, 2026

    27 °F

  • Average October

    51.4 °F

  • Highest 2 October, 2026

    80.1 °F

Climate (2021–2026)

Wiscasset Airport (16.8 miles)

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  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    48.5 °F

  • Average High 2021–2026

    58.1 °F
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