Plymouth Reservoir Weather Forecast

    • 9
    • 27

    Mostly Cloudy

    • 33
    • 35

    Rain

    • 16
    • 44

    Snow Showers

    • 17
    • 20

    Snow Showers Likely

    • 15
    • 26

    Snow Showers Likely

    • 8
    • 22

    Chance Snow Showers

Today 27 Dec Chenango

Mostly cloudy in the Morning, then becoming partly sunny. Highs around 30. Northeast Winds around 5 Mph.

Tonight 27 Dec Chenango

Partly cloudy. Lows 10 to 15. Light and variable Winds, becoming southeast around 5 Mph after midnight.

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  • Temperature Real-Time

Plymouth Reservoir Temperature Statistics

December Temperature

Cortland County-Chase Field (28.6 miles)

  • Lowest 5 December, 2025

    -5.8 °F

  • Average December

    25.7 °F

  • Highest 19 December, 2025

    51.8 °F

Climate (2020–Present)

Cortland County-Chase Field (28.6 miles)

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  • Average Low 2020–2025

    37.9 °F

  • Average 2020–2025

    47.3 °F

  • Average High 2020–2025

    56.5 °F
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