Islesboro Airport Weather Forecast

    • 43
    • 51

    Rain Showers

    • 43
    • 59

    Chance Rain Showers

    • 41
    • 52

    Chance Rain Showers

    • 35
    • 49

    Rain Showers Likely

    • 29
    • 44

    Slight Chance Rain/Snow

    • 36
    • 45

    Chance Rain Showers

Today 16 Apr Coastal Waldo

Cloudy with a 50 percent chance of Showers. Areas of fog this morning. Patchy fog this afternoon. Highs in the lower 50s. Light and variable Winds.

Tonight 16 Apr Coastal Waldo

Showers. Patchy fog. Lows in the lower 40s. Light and variable Winds. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Islesboro Airport Temperature Statistics

April Temperature

Rockland, Knox County Regional Airport (18.6 miles)

  • Lowest 7 April, 2026

    24.1 °F

  • Average April

    39.7 °F

  • Highest 1 April, 2026

    52 °F

Climate (2021–Present)

Rockland, Knox County Regional Airport (18.6 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.9 °F
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