Seneca Castle Weather Forecast
- 54
- 75
Chance Thunderstorms
- 56
- 68
Rain Showers Likely
- 56
- 73
Chance Rain Showers
- 60
- 79
Partly Sunny
- 62
- 83
Chance Rain Showers
- 60
- 80
Chance Rain Showers
Today 23 Aug Ontario
Partly sunny through early Afternoon, then becoming mostly cloudy. Showers likely Early, then a chance of Showers late this morning. A chance of Showers and Thunderstorms this afternoon. Highs Ranging from the upper 60s on the Hilltops to the mid 70s across the lower Elevations. Southwest Winds 5 to 10 Mph, becoming west 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.
Tonight 23 Aug Ontario
Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly cloudy with Showers likely overnight. Lows in the mid 50s. West Winds 10 to 15 Mph, becoming southwest 5 to 10 Mph. Chance of rain 60 percent.
Seneca Castle Temperature Statistics
August Temperature
Penn Yan, Penn Yan Airport (16.8 miles)
Lowest 20 August, 2026
55 °FAverage August
70.9 °FHighest 5 August, 2026
88 °F
Climate (2021–2026)
Penn Yan, Penn Yan Airport (16.8 miles)
Average Low 2021–2026
41.8 °FAverage 2021–2026
50.4 °FAverage High 2021–2026
59 °F