Islesboro Island - Shattuck Point Weather Forecast

    • 55
    • 62

    Rain Showers

    • 58
    • 64

    Rain Showers

    • 43
    • 65

    Mostly Sunny

    • 43
    • 59

    Sunny

    • 53
    • 60

    Mostly Sunny

    • 57
    • 62

    Partly Sunny

Today 17 Sep Coastal Waldo

Partly sunny. Highs in the lower 70s. Light and variable Winds.

Tonight 17 Sep Coastal Waldo

Partly cloudy in the Evening, then mostly cloudy with isolated Showers after midnight. Patchy fog. Lows in the lower 50s. Light and variable Winds. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Islesboro Island - Shattuck Point Temperature Statistics

September Temperature

Rockland, Knox County Regional Airport (15.5 miles)

  • Lowest 10 September, 2025

    43 °F

  • Average September

    60 °F

  • Highest 1 September, 2025

    75.9 °F

Climate (2020–Present)

Rockland, Knox County Regional Airport (15.5 miles)

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  • Average Low 2020–2025

    39.9 °F

  • Average 2020–2025

    48 °F

  • Average High 2020–2025

    55.3 °F
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