Monhegan Island Harbor Weather Forecast

    • 62
    • 65

    Areas Fog

    • 61
    • 70

    Decreasing Clouds

    • 60
    • 68

    Partly Sunny

    • 61
    • 66

    Rain Showers Likely

    • 62
    • 68

    Chance Rain Showers

    • 60
    • 70

    Mostly Sunny

    • 60
    • 69

    Partly Sunny

Today 19 Aug Lincoln

Partly sunny. Highs in the lower 80s. South Winds around 10 Mph.

Tonight 19 Aug Lincoln

Partly cloudy. Areas of fog. Visibility one quarter mile or less at Times after midnight. Lows around 60. Light and variable Winds.

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  • Temperature Real-Time

Monhegan Island Harbor Temperature Statistics

August Temperature

Rockland, Knox County Regional Airport (23.6 miles)

  • Lowest 16 August, 2026

    54 °F

  • Average August

    69.1 °F

  • Highest 6 August, 2026

    86 °F

Climate (2021–2026)

Rockland, Knox County Regional Airport (23.6 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.9 °F
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