Plymouth Reservoir Weather Forecast

    • 54
    • 76

    Increasing Clouds

    • 39
    • 68

    Partly Sunny

    • 43
    • 67

    Mostly Sunny

    • 52
    • 71

    Partly Sunny

    • 56
    • 76

    Chance Rain Showers

    • 56
    • 77

    Chance Rain Showers

Today 18 Sep Chenango

Sunny. Highs in the upper 70s. Northwest Winds around 5 Mph.

Tonight 18 Sep Chenango

Mostly clear. Patchy fog after midnight. Lows in the mid 50s. Northwest Winds around 5 Mph.

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  • Temperature Real-Time

Plymouth Reservoir Temperature Statistics

September Temperature

Cortland County-Chase Field (28.6 miles)

  • Lowest 8 September, 2025

    37.4 °F

  • Average September

    57.8 °F

  • Highest 16 September, 2025

    78.8 °F

Climate (2020–Present)

Cortland County-Chase Field (28.6 miles)

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  • Average Low 2020–2025

    38 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    56.7 °F
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