Montsweag Bay - Back River Entrance Weather Forecast

    • 50
    • 90

    Increasing Clouds

    • 39
    • 66

    Partly Sunny

    • 45
    • 68

    Partly Sunny

    • 44
    • 67

    Mostly Cloudy

    • 44
    • 59

    Chance Rain Showers

    • 48
    • 65

    Chance Rain Showers

    • 51
    • 74

    Slight Chance Rain Showers

Today 20 May Lincoln

Partly sunny with isolated Showers. Warm with Highs in the upper 80s. West Winds around 15 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 20 May Lincoln

Partly cloudy. Less humid with Lows in the upper 40s. Northwest Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Montsweag Bay - Back River Entrance Temperature Statistics

May Temperature

Wiscasset Airport (1.2 miles)

  • Lowest 4 May, 2026

    33.1 °F

  • Average May

    53.9 °F

  • Highest 17 May, 2026

    84.9 °F

Climate (2021–Present)

Wiscasset Airport (1.2 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    57.8 °F
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