Kennebec River - Thorne Island Weather Forecast

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    • 68

    Chance Rain

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    • 62

    Rain Likely

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    Rain

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    • 60

    Rain

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    Slight Chance Rain Showers

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    Partly Sunny

Today 25 Sep Sagadahoc

Partly sunny in the Morning, then becoming mostly cloudy. Highs in the upper 60s. Northeast Winds around 10 Mph with Gusts up to 25 Mph.

Tonight 25 Sep Sagadahoc

Cloudy. A chance of rain after midnight. Lows in the lower 50s. Northeast Winds around 10 Mph, increasing to 15 to 20 Mph with Gusts up to 30 Mph after midnight. Chance of rain 30 percent.

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Kennebec River - Thorne Island Temperature Statistics

September Temperature

Wiscasset Airport (5 miles)

  • Lowest 20 September, 2026

    41 °F

  • Average September

    63.2 °F

  • Highest 10 September, 2026

    87.1 °F

Climate (2021–2026)

Wiscasset Airport (5 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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