DeRuyter Reservoir Weather Forecast

    • 58
    • 74

    Chance Rain Showers

    • 64
    • 75

    Rain Showers

    • 65
    • 80

    Rain Showers Likely

    • 63
    • 80

    Rain Showers Likely

    • 58
    • 77

    Rain Showers Likely

    • 54
    • 75

    Chance Rain Showers

Today 30 Aug Madison

Mostly cloudy with a 50 percent chance of Showers. Highs in the mid 70s. West Winds around 5 Mph.

Tonight 30 Aug Madison

Mostly cloudy. A chance of Showers in the evening. Patchy fog after midnight. Lows in the upper 50s. West Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

DeRuyter Reservoir Temperature Statistics

August Temperature

Cortland County-Chase Field (22.4 miles)

  • Lowest 21 August, 2026

    48.2 °F

  • Average August

    66.1 °F

  • Highest 6 August, 2026

    86 °F

Climate (2021–2026)

Cortland County-Chase Field (22.4 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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