Cayuga Lake Weather Forecast

    • 51
    • 66

    Mostly Sunny

    • 54
    • 71

    Mostly Sunny

    • 54
    • 73

    Mostly Sunny

    • 55
    • 74

    Mostly Sunny

    • 55
    • 71

    Mostly Sunny

    • 61
    • 77

    Partly Sunny

Today 8 Sep Seneca

Mostly sunny. Highs in the upper 60s. Northwest Winds around 5 Mph.

Tonight 8 Sep Seneca

Mostly clear. Lows in the mid 40s. Northeast Winds around 5 Mph, becoming south after midnight.

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Cayuga Lake Temperature Statistics

September Temperature

Penn Yan, Penn Yan Airport (17.4 miles)

  • Lowest 1 September, 2025

    50 °F

  • Average September

    64.2 °F

  • Highest 3 September, 2025

    81 °F

Climate (2020–Present)

Penn Yan, Penn Yan Airport (17.4 miles)

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  • Average Low 2020–2025

    42.1 °F

  • Average 2020–2025

    50.6 °F

  • Average High 2020–2025

    59.3 °F
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