Monhegan Island Weather Forecast

    • 62
    • 65

    Rain Showers

    • 58
    • 69

    Breezy

    • 55
    • 64

    Mostly Sunny

    • 59
    • 62

    Partly Sunny

    • 59
    • 64

    Slight Chance Rain Showers

    • 56
    • 65

    Mostly Cloudy

Today 9 Sep Lincoln

Mostly cloudy. Highs around 70. Light and variable Winds, becoming south around 10 Mph with Gusts up to 20 Mph in the afternoon.

Tonight 9 Sep Lincoln

A slight chance of Thunderstorms. Showers. Lows in the lower 60s. South Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Monhegan Island Temperature Statistics

September Temperature

Rockland, Knox County Regional Airport (23 miles)

  • Lowest 1 September, 2026

    48.9 °F

  • Average September

    61.6 °F

  • Highest 4 September, 2026

    73 °F

Climate (2021–2026)

Rockland, Knox County Regional Airport (23 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.8 °F
Get WillyWeather+ to remove ads