Merrymeeting Bay - Muddy River Entrance Weather Forecast

    • 42
    • 65

    Rain Showers

    • 43
    • 65

    Partly Sunny

    • 47
    • 71

    Chance Rain Showers

    • 48
    • 74

    Mostly Sunny

    • 54
    • 80

    Mostly Sunny

    • 56
    • 83

    Partly Sunny

    • 55
    • 80

    Slight Chance Rain Showers

Today 31 May Sagadahoc

Partly sunny with isolated Showers this Morning, then mostly cloudy with Showers with isolated Thunderstorms this afternoon. Highs in the mid 60s. Light and variable Winds. Chance of rain 90 percent.

Tonight 31 May Sagadahoc

Showers with a slight chance of Thunderstorms Early, then Showers likely after midnight. Patchy fog after midnight. Lows in the lower 40s. Light and variable Winds. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Merrymeeting Bay - Muddy River Entrance Temperature Statistics

May Temperature

Wiscasset Airport (8.7 miles)

  • Lowest 4 May, 2026

    33.1 °F

  • Average May

    57 °F

  • Highest 19 May, 2026

    91 °F

Climate (2021–Present)

Wiscasset Airport (8.7 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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