Montsweag Bay - Back River Entrance Weather Forecast

    • 61
    • 80

    Mostly Cloudy

    • 61
    • 82

    Mostly Cloudy

    • 56
    • 84

    Partly Sunny

    • 54
    • 83

    Mostly Sunny

    • 56
    • 79

    Chance Rain Showers

    • 58
    • 78

    Chance Rain Showers

    • 55
    • 80

    Slight Chance Thunderstorms

Today 18 Aug Lincoln

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

Tonight 18 Aug Lincoln

Partly cloudy in the Evening, then becoming mostly cloudy. Areas of fog. Visibility one quarter mile or less at Times after midnight. Lows around 60. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Montsweag Bay - Back River Entrance Temperature Statistics

August Temperature

Wiscasset Airport (1.2 miles)

  • Lowest 15 August, 2026

    52 °F

  • Average August

    72.8 °F

  • Highest 6 August, 2026

    90 °F

Climate (2021–2026)

Wiscasset Airport (1.2 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    48.5 °F

  • Average High 2021–2026

    58 °F
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