Cornwall Lake Weather Forecast

    • 58
    • 79

    Increasing Clouds

    • 56
    • 80

    Chance Rain Showers

    • 50
    • 76

    Chance Rain Showers

    • 46
    • 73

    Slight Chance Rain Showers

    • 49
    • 75

    Partly Sunny

    • 56
    • 80

    Mostly Cloudy

Today 20 Aug Cheboygan

Mostly sunny. Highs in the upper 70s. Light Winds.

Tonight 20 Aug Cheboygan

Partly cloudy with a 20 percent chance of rain Showers. Lows in the upper 50s. South Winds up to 10 Mph. Gusts up to 20 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cornwall Lake Temperature Statistics

August Temperature

Gaylord Regional Airport (19.9 miles)

  • Lowest 3 August, 2026

    48.7 °F

  • Average August

    68.7 °F

  • Highest 4 August, 2026

    84.7 °F

Climate (2021–2026)

Gaylord Regional Airport (19.9 miles)

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  • Average Low 2021–2026

    37.6 °F

  • Average 2021–2026

    46.6 °F

  • Average High 2021–2026

    55.5 °F
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