Cornerstone Weather Forecast

    • 30
    • 40

    Chance Snow Showers

    • 49
    • 65

    Chance Rain Showers

    • 44
    • 62

    Mostly Sunny

    • 53
    • 70

    Partly Sunny

    • 51
    • 73

    Rain Showers Likely

    • 47
    • 63

    Chance Rain Showers

Today 20 Apr Lake

Partly sunny in the Morning, then clearing. A 20 percent chance of snow Showers. Highs around 40. Northwest Winds 5 to 10 Mph.

Tonight 20 Apr Lake

Mostly clear. Lows in the lower 30s. Southwest Winds around 5 Mph, becoming south after midnight.

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Cornerstone Temperature Statistics

April Temperature

Ashtabula - Northeast Ohio Regional Airport (16.8 miles)

  • Lowest 8 April, 2026

    19.9 °F

  • Average April

    52.8 °F

  • Highest 4 April, 2026

    80.1 °F

Climate (2021–Present)

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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