Wareham River - Cedar Island Weather Forecast

    • 63
    • 78

    Rain Showers Likely

    • 56
    • 68

    Rain Showers

    • 56
    • 72

    Partly Sunny

    • 59
    • 71

    Chance Rain Showers

    • 58
    • 70

    Chance Rain Showers

    • 58
    • 74

    Partly Sunny

Today 6 Sep Southern Plymouth

Partly sunny. Highs in the lower 80s. South Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 6 Sep Southern Plymouth

Numerous Showers with isolated Thunderstorms in the Evening, then numerous Showers with a slight chance of Thunderstorms after midnight. Some Thunderstorms may produce damaging Winds, frequent Lightning, and heavy rainfall in the evening. Humid with Lows in the lower 60s. Southwest Winds 15 to 20 Mph, becoming west 5 to 10 Mph after midnight. Chance of rain 70 percent.

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Wareham River - Cedar Island Temperature Statistics

September Temperature

Plymouth, Plymouth Municipal Airport (11.8 miles)

  • Lowest 1 September, 2025

    48.9 °F

  • Average September

    63 °F

  • Highest 3 September, 2025

    77 °F

Climate (2020–Present)

Plymouth, Plymouth Municipal Airport (11.8 miles)

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  • Average Low 2020–2025

    43.6 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    61.9 °F
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