Popham Beach State Park Weather Forecast

    • 59
    • 63

    Rain Showers

    • 60
    • 67

    Partly Sunny

    • 45
    • 67

    Mostly Sunny

    • 45
    • 61

    Sunny

    • 56
    • 62

    Mostly Sunny

    • 60
    • 64

    Partly Sunny

Today 17 Sep Sagadahoc

Partly sunny. Highs in the mid 70s. Light and variable Winds.

Tonight 17 Sep Sagadahoc

Partly cloudy in the Evening, then cloudy with isolated Showers after midnight. Patchy fog. Lows in the lower 50s. Light and variable Winds. Chance of rain 20 percent.

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Popham Beach State Park Temperature Statistics

September Temperature

Wiscasset Airport (16.2 miles)

  • Lowest 9 September, 2025

    44.1 °F

  • Average September

    62.9 °F

  • Highest 1 September, 2025

    82 °F

Climate (2020–Present)

Wiscasset Airport (16.2 miles)

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  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    48.6 °F

  • Average High 2020–2025

    57.9 °F
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