Sheepscot Bay - Lower Mark Island Weather Forecast

    • 63
    • 65

    Rain Showers

    • 59
    • 74

    Partly Sunny

    • 54
    • 66

    Sunny

    • 58
    • 64

    Mostly Sunny

    • 60
    • 67

    Slight Chance Rain Showers

    • 55
    • 69

    Partly Sunny

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.

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Sheepscot Bay - Lower Mark Island Temperature Statistics

September Temperature

Wiscasset Airport (11.8 miles)

  • Lowest 1 September, 2026

    51.1 °F

  • Average September

    65.8 °F

  • Highest 4 September, 2026

    82 °F

Climate (2021–2026)

Wiscasset Airport (11.8 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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