Keuka Lake State Park Weather Forecast

    • 45
    • 61

    Mostly Cloudy

    • 45
    • 64

    Mostly Cloudy

    • 45
    • 65

    Partly Sunny

    • 45
    • 64

    Partly Sunny

    • 46
    • 64

    Partly Sunny

    • 47
    • 64

    Partly Sunny

    • 48
    • 67

    Mostly Cloudy

Today 21 Sep Yates

Partly sunny. Highs around 70.

Tonight 21 Sep Yates

Mostly cloudy. Lows in the mid 40s. Northeast Winds 5 to 10 Mph.

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Keuka Lake State Park Temperature Statistics

September Temperature

Penn Yan, Penn Yan Airport (5.6 miles)

  • Lowest 19 September, 2026

    43 °F

  • Average September

    66.5 °F

  • Highest 1 September, 2026

    82.9 °F

Climate (2021–2026)

Penn Yan, Penn Yan Airport (5.6 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    50.3 °F

  • Average High 2021–2026

    59 °F
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