Stanley Weather Forecast

    • 16
    • 24

    Cloudy

    • 37
    • 39

    Rain

    • 19
    • 47

    Snow Showers

    • 20
    • 24

    Chance Snow Showers

    • 17
    • 28

    Snow Showers Likely

    • 11
    • 22

    Chance Snow Showers

    • 14
    • 22

    Mostly Cloudy

Today 27 Dec Ontario

Cloudy. Highs Ranging from around 20 on the Hilltops to the mid 20s across the lower Elevations. Light north Winds.

Tonight 27 Dec Ontario

Mostly cloudy. Lows 15 to 20. Light southeast Winds.

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Stanley Temperature Statistics

December Temperature

Penn Yan, Penn Yan Airport (12.4 miles)

  • Lowest 4 December, 2025

    3 °F

  • Average December

    27.7 °F

  • Highest 19 December, 2025

    54 °F

Climate (2020–Present)

Penn Yan, Penn Yan Airport (12.4 miles)

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  • Average Low 2020–2025

    42 °F

  • Average 2020–2025

    50.5 °F

  • Average High 2020–2025

    59.2 °F
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