Ithaca Reservoir Weather Forecast

    • 47
    • 72

    Decreasing Clouds

    • 46
    • 71

    Mostly Sunny

    • 48
    • 72

    Mostly Sunny

    • 50
    • 75

    Mostly Sunny

    • 56
    • 81

    Mostly Sunny

    • 59
    • 85

    Partly Sunny

Today 31 May Tompkins

Partly sunny. Highs in the lower 70s. Northwest Winds 5 to 10 Mph.

Tonight 31 May Tompkins

Partly cloudy. A slight chance of Showers in the evening. Lows in the upper 40s. Northwest Winds 5 to 10 Mph. Chance of rain 20 percent.

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Ithaca Reservoir Temperature Statistics

May Temperature

Ithaca, Ithaca Tompkins Regional Airport (5 miles)

  • Lowest 12 May, 2026

    28.9 °F

  • Average May

    54.3 °F

  • Highest 18 May, 2026

    90 °F

Climate (2021–Present)

Ithaca, Ithaca Tompkins Regional Airport (5 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    57.9 °F
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