Cape Island Weather Forecast

    • 56
    • 64

    Mostly Sunny

    • 57
    • 66

    Mostly Sunny

    • 59
    • 64

    Mostly Cloudy

    • 59
    • 66

    Mostly Sunny

    • 50
    • 66

    Mostly Sunny

    • 50
    • 60

    Mostly Sunny

Today 15 Sep Lincoln

Mostly sunny. Highs in the mid 70s. Light and variable Winds.

Tonight 15 Sep Lincoln

Mostly clear. Patchy fog after midnight. Lows in the lower 50s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cape Island Temperature Statistics

September Temperature

Wiscasset Airport (12.4 miles)

  • Lowest 9 September, 2025

    44.1 °F

  • Average September

    63.1 °F

  • Highest 1 September, 2025

    82 °F

Climate (2020–Present)

Wiscasset Airport (12.4 miles)

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  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    48.5 °F

  • Average High 2020–2025

    57.9 °F
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