Castle Heights Weather Forecast

    • 39
    • 59

    Slight Chance Rain Showers

    • 41
    • 58

    Mostly Sunny

    • 49
    • 70

    Partly Sunny

    • 45
    • 67

    Partly Sunny

    • 43
    • 65

    Partly Sunny

    • 43
    • 62

    Mostly Sunny

Today 5 Oct Ontario

Sunny. Highs Ranging from the lower 50s on the Hilltops to the upper 50s across the lower Elevations. West Winds 10 to 15 Mph with Gusts up to 30 Mph, becoming northwest.

Tonight 5 Oct Ontario

Mainly clear in the Evening, then becoming partly cloudy with Areas of frost developing overnight. Chilly with Lows in the upper 30s. Northwest Winds 10 to 15 Mph, becoming light.

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  • Temperature Real-Time

Castle Heights Temperature Statistics

October Temperature

Penn Yan, Penn Yan Airport (15.5 miles)

  • Lowest 2 October, 2026

    53.1 °F

  • Average October

    64.7 °F

  • Highest 1 October, 2026

    71.1 °F

Climate (2021–2026)

Penn Yan, Penn Yan Airport (15.5 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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