Plymouth Reservoir Weather Forecast

    • 56
    • 73

    Chance Thunderstorms

    • 58
    • 78

    Partly Sunny

    • 61
    • 81

    Mostly Cloudy

    • 58
    • 73

    Rain Showers

    • 55
    • 76

    Slight Chance Rain Showers

    • 59
    • 79

    Mostly Sunny

Today 30 Jul Chenango

Mostly cloudy with a slight chance of Showers this Morning, then partly sunny with a chance of Showers and Thunderstorms this afternoon. Highs in the mid 70s. North Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 30 Jul Chenango

Partly cloudy. A chance of Showers and Thunderstorms in the evening. Patchy fog after midnight. Lows in the mid 50s. Northwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Real-Time

Plymouth Reservoir Temperature Statistics

July Temperature

Cortland County-Chase Field (28.6 miles)

  • Lowest 20 July, 2026

    44.6 °F

  • Average July

    68.9 °F

  • Highest 1 July, 2026

    91.4 °F

Climate (2021–2026)

Cortland County-Chase Field (28.6 miles)

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  • Average Low 2021–2026

    37.7 °F

  • Average 2021–2026

    47.2 °F

  • Average High 2021–2026

    56.5 °F
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