Monhegan Island Harbor Weather Forecast

    • 58
    • 63

    Rain Showers

    • 59
    • 64

    Rain Showers

    • 59
    • 66

    Partly Sunny

    • 61
    • 68

    Mostly Cloudy

    • 62
    • 69

    Chance Rain Showers

    • 62
    • 69

    Chance Rain Showers

    • 62
    • 70

    Partly Sunny

Today 29 Jul Lincoln

Mostly cloudy with a slight chance of Showers and Thunderstorms. Patchy fog. Highs in the mid 70s. East Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 29 Jul Lincoln

A slight chance of Thunderstorms. Showers. Patchy fog. Lows in the upper 50s. East Winds around 10 Mph. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Monhegan Island Harbor Temperature Statistics

July Temperature

Rockland, Knox County Regional Airport (23.6 miles)

  • Lowest 27 July, 2026

    44.1 °F

  • Average July

    68.3 °F

  • Highest 2 July, 2026

    91.9 °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

    54.8 °F
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