Merrymeeting Bay - Sturgeon Island Weather Forecast

    • 46
    • 70

    Increasing Clouds

    • 53
    • 68

    Mostly Cloudy

    • 55
    • 66

    Chance Rain Showers

    • 53
    • 69

    Slight Chance Rain Showers

    • 55
    • 75

    Mostly Sunny

    • 61
    • 75

    Partly Sunny

Today 18 Aug Sagadahoc

Mostly sunny. Highs in the lower 70s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 18 Aug Sagadahoc

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 40s. Light and variable Winds.

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Merrymeeting Bay - Sturgeon Island Temperature Statistics

August Temperature

Wiscasset Airport (6.2 miles)

  • Lowest 2 August, 2025

    54.6 °F

  • Average August

    71.7 °F

  • Highest 12 August, 2025

    94.6 °F

Climate (2020–Present)

Wiscasset Airport (6.2 miles)

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  • Average Low 2020–2025

    38.8 °F

  • Average 2020–2025

    48.5 °F

  • Average High 2020–2025

    57.8 °F
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