Islesboro Island - Charlottes Cove Weather Forecast

    • 54
    • 69

    Areas Fog

    • 58
    • 71

    Mostly Cloudy

    • 62
    • 72

    Chance Rain Showers

    • 57
    • 76

    Rain Showers Likely

    • 53
    • 70

    Chance Rain Showers

    • 50
    • 69

    Mostly Sunny

    • 50
    • 68

    Mostly Sunny

Today 3 Sep Coastal Waldo

Mostly sunny. Highs in the lower 70s. South Winds around 10 Mph.

Tonight 3 Sep Coastal Waldo

Partly cloudy. Patchy fog in the Evening, then Areas of fog after midnight. Lows in the lower 50s. South Winds around 10 Mph in the Evening, becoming light and variable.

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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 1 September, 2025

    52 °F

  • Average September

    64 °F

  • Highest 1 September, 2025

    75.9 °F

Climate (2020–Present)

Rockland, Knox County Regional Airport (18 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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