Islesboro Island - Charlottes Cove Weather Forecast

    • 66
    • 78

    Mostly Sunny

    • 67
    • 77

    Chance Rain Showers

    • 65
    • 81

    Chance Thunderstorms

    • 65
    • 82

    Mostly Sunny

    • 65
    • 84

    Slight Chance Rain Showers

    • 62
    • 81

    Partly Sunny

Today 6 Aug Coastal Waldo

Patchy fog in the morning. Mostly sunny. Warm with Highs in the upper 80s. Light and variable Winds, becoming south around 10 Mph in the afternoon. Heat index Values in the lower 90s in the afternoon.

Tonight 6 Aug Coastal Waldo

Partly cloudy. Patchy fog after midnight. Humid with Lows in the upper 60s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Islesboro Island - Charlottes Cove Temperature Statistics

August Temperature

Rockland, Knox County Regional Airport (18 miles)

  • Lowest 1 August, 2026

    55.9 °F

  • Average August

    66.8 °F

  • Highest 2 August, 2026

    75.9 °F

Climate (2021–2026)

Rockland, Knox County Regional Airport (18 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.8 °F
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