Cornerstone Weather Forecast

    • 59
    • 82

    Rain Showers Likely

    • 56
    • 70

    Chance Rain Showers

    • 56
    • 74

    Slight Chance Rain Showers

    • 62
    • 79

    Partly Sunny

    • 67
    • 82

    Partly Sunny

    • 67
    • 82

    Rain Showers Likely

    • 66
    • 83

    Chance Rain Showers

Today 21 Jul Lake

Partly sunny with a chance of Showers and Thunderstorms. Highs in the lower 80s. Southwest Winds 15 to 20 Mph. Chance of rain 50 percent.

Tonight 21 Jul Lake

Mostly cloudy with a chance of Showers and Thunderstorms. Lows in the upper 50s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cornerstone Temperature Statistics

July Temperature

Ashtabula - Northeast Ohio Regional Airport (16.8 miles)

  • Lowest 19 July, 2026

    55.9 °F

  • Average July

    75 °F

  • Highest 1 July, 2026

    93.9 °F

Climate (2021–2026)

Ashtabula - Northeast Ohio Regional Airport (16.8 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    60.6 °F
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