Thrumcap Island Weather Forecast

    • 56
    • 70

    Slight Chance Rain Showers

    • 63
    • 66

    Breezy

    • 59
    • 74

    Chance Rain Showers

    • 55
    • 67

    Mostly Sunny

    • 57
    • 64

    Partly Sunny

    • 58
    • 66

    Partly Sunny

Today 8 Sep Lincoln

Partly sunny. A chance of Showers in the morning. Highs in the upper 70s. North Winds around 10 Mph. Chance of rain 40 percent.

Tonight 8 Sep Lincoln

Mostly clear in the Evening, then becoming partly cloudy. Lows around 50. Light and variable Winds.

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Thrumcap Island Temperature Statistics

September Temperature

Wiscasset Airport (12.4 miles)

  • Lowest 1 September, 2026

    51.1 °F

  • Average September

    66.8 °F

  • Highest 4 September, 2026

    82 °F

Climate (2021–2026)

Wiscasset Airport (12.4 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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