Cornwall Lake Weather Forecast

    • 55
    • 80

    Mostly Sunny

    • 61
    • 83

    Chance Thunderstorms

    • 53
    • 78

    Chance Rain Showers

    • 48
    • 69

    Chance Rain Showers

    • 46
    • 62

    Chance Rain Showers

    • 45
    • 66

    Mostly Sunny

Today 21 Aug Cheboygan

Mostly sunny. Highs around 80. Light Winds.

Tonight 21 Aug Cheboygan

Mostly clear. Lows in the mid 50s. Light Winds.

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Cornwall Lake Temperature Statistics

August Temperature

Gaylord Regional Airport (19.9 miles)

  • Lowest 1 August, 2025

    44.7 °F

  • Average August

    69.9 °F

  • Highest 9 August, 2025

    91.7 °F

Climate (2020–Present)

Gaylord Regional Airport (19.9 miles)

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  • Average Low 2020–2025

    38.1 °F

  • Average 2020–2025

    47 °F

  • Average High 2020–2025

    55.7 °F
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