Castle Heights Weather Forecast

    • 43
    • 69

    Becoming Sunny

    • 47
    • 70

    Mostly Sunny

    • 62
    • 77

    Partly Sunny

    • 62
    • 81

    Chance Rain Showers

    • 61
    • 79

    Chance Rain Showers

    • 57
    • 76

    Chance Rain Showers

Today 19 Sep Ontario

Mostly cloudy in the Morning, then becoming mostly sunny. Cooler with Highs in the upper 60s. Light Winds, becoming north around 10 Mph.

Tonight 19 Sep Ontario

Mostly cloudy. A chance of Sprinkles. Some patchy fog developing late. Lows in the upper 50s. Light north Winds.

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Castle Heights Temperature Statistics

September Temperature

Penn Yan, Penn Yan Airport (15.5 miles)

  • Lowest 8 September, 2025

    45 °F

  • Average September

    62.4 °F

  • Highest 3 September, 2025

    81 °F

Climate (2020–Present)

Penn Yan, Penn Yan Airport (15.5 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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