Geneva State Park Weather Forecast
- 68
- 79
Slight Chance Thunderstorms
- 59
- 77
Slight Chance Rain Showers
- 57
- 67
Partly Sunny
- 67
- 79
Rain Showers Likely
- 68
- 79
Rain Showers Likely
- 63
- 78
Chance Rain Showers
Today 12 Sep Ashtabula Lakeshore
Partly sunny this Morning, then mostly cloudy with Showers likely with a chance of Thunderstorms this afternoon. Highs around 80. South Winds 5 to 10 Mph, becoming southwest this afternoon. Chance of rain 60 percent.
Tonight 12 Sep Ashtabula Lakeshore
Mostly cloudy. A chance of Showers and Thunderstorms in the evening. Humid with Lows in the mid 60s. South Winds 5 to 10 Mph. Chance of rain 40 percent.
Geneva State Park Temperature Statistics
September Temperature
Ashtabula - Northeast Ohio Regional Airport (14.9 miles)
Lowest 7 September, 2026
48 °FAverage September
70.6 °FHighest 2 September, 2026
91.9 °F
Climate (2021–2026)
Ashtabula - Northeast Ohio Regional Airport (14.9 miles)
Average Low 2021–2026
42.6 °FAverage 2021–2026
51.6 °FAverage High 2021–2026
60.6 °F