Merrymeeting Bay - Cathance River Entrance Weather Forecast

    • 66
    • 80

    Chance Thunderstorms

    • 57
    • 81

    Mostly Sunny

    • 61
    • 80

    Chance Rain Showers

    • 58
    • 76

    Chance Rain Showers

    • 56
    • 79

    Mostly Sunny

    • 60
    • 80

    Partly Sunny

Today 17 Jul Sagadahoc

Areas of fog in the morning. Partly sunny in the Morning, then mostly cloudy with a chance of Showers and Thunderstorms in the afternoon. Some Thunderstorms may produce gusty Winds and heavy rainfall in the afternoon. Humid with Highs in the lower 80s. South Winds around 10 Mph. Gusts up to 25 Mph in the afternoon. Chance of rain 40 percent.

Tonight 17 Jul Sagadahoc

Partly cloudy. Isolated Showers and Thunderstorms in the evening. Patchy fog. Some Thunderstorms may produce gusty Winds and heavy rainfall in the evening. Humid with Lows in the upper 60s. South Winds around 10 Mph with Gusts up to 20 Mph, becoming west after midnight. Chance of rain 20 percent.

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Merrymeeting Bay - Cathance River Entrance Temperature Statistics

July Temperature

Wiscasset Airport (8.7 miles)

  • Lowest 5 July, 2025

    56.6 °F
  • Average July

    72 °F
  • Highest 6 July, 2025

    90.6 °F

Climate (2020–Present)

Wiscasset Airport (8.7 miles)

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  • Average Low 2020–2025

    38.9 °F
  • Average 2020–2025

    48.5 °F
  • Average High 2020–2025

    57.8 °F
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