Monhegan Island Harbor Weather Forecast

    • 46
    • 52

    Rain

    • 47
    • 54

    Rain Showers Likely

    • 47
    • 52

    Slight Chance Rain Showers

    • 48
    • 54

    Chance Rain Showers

    • 50
    • 56

    Chance Rain Showers

    • 52
    • 59

    Partly Sunny

Today 30 May Lincoln

Cloudy. Rain Likely, mainly in the morning. Highs in the mid 50s. Northeast Winds 10 to 15 Mph with Gusts up to 35 Mph. Chance of rain 70 percent.

Tonight 30 May Lincoln

Rain. Lows in the lower 40s. Northeast Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Monhegan Island Harbor Temperature Statistics

May Temperature

Rockland, Knox County Regional Airport (23.6 miles)

  • Lowest 4 May, 2026

    32 °F

  • Average May

    53.8 °F

  • Highest 20 May, 2026

    86 °F

Climate (2021–Present)

Rockland, Knox County Regional Airport (23.6 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.8 °F
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