The Basin Weather Forecast

    • 54
    • 59

    Rain

    • 52
    • 64

    Chance Rain

    • 52
    • 68

    Mostly Cloudy

    • 60
    • 70

    Partly Sunny

    • 50
    • 74

    Slight Chance Rain Showers

    • 46
    • 66

    Partly Sunny

    • 48
    • 63

    Chance Rain Showers

Today 28 Sep Sagadahoc

Partly sunny. A chance of Showers in the morning. Highs in the mid 60s. Chance of rain 40 percent.

Tonight 28 Sep Sagadahoc

Rain. Areas of fog. Lows in the lower 50s. Northeast Winds around 10 Mph. Gusts up to 25 Mph this evening. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

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The Basin Temperature Statistics

September Temperature

Wiscasset Airport (13 miles)

  • Lowest 24 September, 2026

    37.9 °F

  • Average September

    62.5 °F

  • Highest 10 September, 2026

    87.1 °F

Climate (2021–2026)

Wiscasset Airport (13 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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