Mouse Island Weather Forecast

    • 58
    • 69

    Chance Rain Showers

    • 58
    • 76

    Slight Chance Rain Showers

    • 54
    • 70

    Partly Sunny

    • 54
    • 70

    Mostly Sunny

    • 57
    • 73

    Partly Sunny

    • 54
    • 73

    Partly Sunny

Today 3 Sep Lincoln

Patchy fog this morning. Rain with a slight chance of Thunderstorms this Morning, then a chance of Showers this afternoon. Highs around 70. Southeast Winds around 10 Mph. Chance of rain near 100 percent.

Tonight 3 Sep Lincoln

Partly cloudy in the Evening, then becoming mostly cloudy. Patchy fog. Lows in the upper 50s. Light and variable Winds.

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Mouse Island Temperature Statistics

September Temperature

Wiscasset Airport (9.3 miles)

  • Lowest 1 September, 2026

    51.1 °F

  • Average September

    63.7 °F

  • Highest 1 September, 2026

    77 °F

Climate (2021–2026)

Wiscasset Airport (9.3 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    48.5 °F

  • Average High 2021–2026

    58.1 °F
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