Castle Heights Weather Forecast

    • 62
    • 79

    Decreasing Clouds

    • 59
    • 79

    Rain Showers

    • 56
    • 78

    Mostly Sunny

    • 60
    • 79

    Mostly Sunny

    • 62
    • 81

    Chance Rain Showers

    • 59
    • 78

    Rain Showers Likely

Today 18 Aug Ontario

Areas of fog in the Morning, otherwise partly to mostly sunny. Highs Ranging from the lower 70s on the Hilltops to the upper 70s across the lower Elevations. Light northwest Winds.

Tonight 18 Aug Ontario

Partly cloudy. Lows in the lower 60s. Light Winds.

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Castle Heights Temperature Statistics

August Temperature

Penn Yan, Penn Yan Airport (15.5 miles)

  • Lowest 15 August, 2026

    57 °F

  • Average August

    71.7 °F

  • Highest 5 August, 2026

    88 °F

Climate (2021–2026)

Penn Yan, Penn Yan Airport (15.5 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    50.4 °F

  • Average High 2021–2026

    59 °F
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