Islesboro Island - Charlottes Cove Weather Forecast

    • 46
    • 63

    Increasing Clouds

    • 50
    • 68

    Chance Rain

    • 50
    • 61

    Rain Likely

    • 49
    • 61

    Rain Showers

    • 49
    • 59

    Rain Showers Likely

    • 49
    • 62

    Partly Sunny

Today 24 Sep Coastal Waldo

Sunny. Highs in the mid 60s. Light and variable Winds.

Tonight 24 Sep Coastal Waldo

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 40s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Islesboro Island - Charlottes Cove Temperature Statistics

September Temperature

Rockland, Knox County Regional Airport (18 miles)

  • Lowest 20 September, 2026

    39 °F

  • Average September

    60.2 °F

  • Highest 10 September, 2026

    84 °F

Climate (2021–2026)

Rockland, Knox County Regional Airport (18 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.8 °F
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