Cornerstone Weather Forecast

    • 72
    • 86

    Rain Showers Likely

    • 63
    • 86

    Chance Thunderstorms

    • 62
    • 78

    Partly Sunny

    • 68
    • 84

    Rain Showers Likely

    • 65
    • 82

    Slight Chance Thunderstorms

    • 67
    • 84

    Chance Rain Showers

    • 71
    • 89

    Chance Rain Showers

Today 16 Jul Lake

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms this Morning, then Showers with Thunderstorms likely this afternoon. Some Thunderstorms may produce heavy rainfall. Highs in the mid 80s. South Winds 5 to 10 Mph. Chance of rain 80 percent.

Tonight 16 Jul Lake

Mostly cloudy with a chance of Showers and Thunderstorms this Evening, then partly cloudy with a slight chance of Showers and Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall this evening. Lows in the lower 70s. South Winds 5 to 10 Mph. Chance of rain 50 percent.

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Cornerstone Temperature Statistics

July Temperature

Ashtabula - Northeast Ohio Regional Airport (16.8 miles)

  • Lowest 4 July, 2025

    56.6 °F

  • Average July

    75 °F

  • Highest 6 July, 2025

    91.7 °F

Climate (2020–Present)

Ashtabula - Northeast Ohio Regional Airport (16.8 miles)

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  • Average Low 2020–2025

    43.2 °F

  • Average 2020–2025

    51.8 °F

  • Average High 2020–2025

    60.6 °F
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