Marsh Island Weather Forecast

    • 63
    • 76

    Slight Chance Rain Showers

    • 56
    • 78

    Rain Showers

    • 53
    • 72

    Rain Showers Likely

    • 49
    • 74

    Mostly Sunny

    • 50
    • 71

    Mostly Sunny

    • 53
    • 71

    Partly Sunny

Today 5 Sep Lincoln

Mostly cloudy. A chance of Showers this morning. Patchy fog this morning. Highs in the mid 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 30 percent.

Tonight 5 Sep Lincoln

Partly cloudy. Patchy fog after midnight. Humid with Lows in the lower 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Marsh Island Temperature Statistics

September Temperature

Wiscasset Airport (14.3 miles)

  • Lowest 1 September, 2025

    52 °F

  • Average September

    66 °F

  • Highest 1 September, 2025

    82 °F

Climate (2020–Present)

Wiscasset Airport (14.3 miles)

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

  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    48.5 °F

  • Average High 2020–2025

    57.9 °F
Get WillyWeather+ to remove ads