Seneca Castle Weather Forecast

    • 37
    • 48

    Slight Chance Rain Showers

    • 37
    • 52

    Partly Sunny

    • 42
    • 55

    Chance Rain Showers

    • 47
    • 62

    Chance Rain Showers

    • 42
    • 64

    Rain Showers Likely

    • 38
    • 55

    Partly Sunny

    • 42
    • 57

    Chance Rain Showers

Today 6 May Ontario

Cloudy. A chance of Showers late. Cool with Highs Ranging from the mid 40s on the Hilltops to the upper 40s across the lower Elevations. Light northwest Winds. Chance of rain 30 percent.

Tonight 6 May Ontario

Mostly cloudy through the early Overnight, then becoming partly cloudy. A chance of rain Showers early. Patchy frost developing after midnight. Lows in the upper 30s. Light Winds. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Seneca Castle Temperature Statistics

May Temperature

Penn Yan, Penn Yan Airport (16.8 miles)

  • Lowest 1 May, 2026

    35.1 °F

  • Average May

    49.3 °F

  • Highest 4 May, 2026

    73 °F

Climate (2021–Present)

Penn Yan, Penn Yan Airport (16.8 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    50.4 °F

  • Average High 2021–2026

    59.1 °F
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