Cornerstone Weather Forecast
- 47
- 69
Patchy Fog
- 52
- 73
Mostly Sunny
- 55
- 76
Mostly Sunny
- 57
- 78
Mostly Sunny
- 56
- 78
Rain Showers Likely
- 50
- 68
Chance Rain Showers
- 51
- 67
Mostly Cloudy
Today 30 Aug Lake
Mostly sunny. Highs in the upper 60s. Northeast Winds 5 to 10 Mph.
Tonight 30 Aug Lake
Clear this Evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the upper 40s. Northeast Winds around 5 Mph, becoming southeast after midnight.
Cornerstone Temperature Statistics
August Temperature
Ashtabula - Northeast Ohio Regional Airport (16.8 miles)
Lowest 1 August, 2025
48.7 °FAverage August
70.7 °FHighest 11 August, 2025
90.6 °F
Climate (2020–Present)
Ashtabula - Northeast Ohio Regional Airport (16.8 miles)
Average Low 2020–2025
43.2 °FAverage 2020–2025
51.9 °FAverage High 2020–2025
60.6 °F