Penitentiary Glen Reservation Weather Forecast

    • 63
    • 79

    Decreasing Clouds

    • 59
    • 78

    Partly Sunny

    • 63
    • 81

    Partly Sunny

    • 70
    • 84

    Mostly Cloudy

    • 71
    • 86

    Mostly Cloudy

    • 71
    • 87

    Mostly Cloudy

Today 27 Aug Lake

Partly cloudy this Morning, then clearing. Highs in the upper 70s. West Winds 5 to 10 Mph.

Tonight 27 Aug Lake

Mostly clear in the Evening, then partly cloudy with a slight chance of Showers after midnight. Lows in the lower 60s. West Winds 5 to 10 Mph in the Evening, becoming light and variable. Chance of rain 20 percent.

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Penitentiary Glen Reservation Temperature Statistics

August Temperature

Willoughby (5 miles)

  • Lowest 4 August, 2026

    51.8 °F

  • Average August

    71.5 °F

  • Highest 8 August, 2026

    85.5 °F

Climate (2021–2026)

Willoughby (5 miles)

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  • Average Low 2021–2026

    43.5 °F

  • Average 2021–2026

    51.7 °F

  • Average High 2021–2026

    59.3 °F
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