Keartys Bay Weather Forecast

    • 61
    • 74

    Decreasing Clouds

    • 58
    • 75

    Partly Sunny

    • 58
    • 79

    Chance Rain Showers

    • 52
    • 73

    Mostly Sunny

    • 48
    • 66

    Partly Sunny

    • 45
    • 67

    Mostly Sunny

Today 20 Aug Green Lake

Mostly cloudy. Chance of Sprinkles through the day. Highs in the mid 70s. Northeast Winds 5 to 10 Mph.

Tonight 20 Aug Green Lake

Partly cloudy. Patchy fog early in the morning. Lows in the upper 50s. Northeast Winds around 5 Mph.

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Keartys Bay Temperature Statistics

August Temperature

Fond Du Lac County Airport (24.9 miles)

  • Lowest 1 August, 2025

    49.6 °F

  • Average August

    71.8 °F

  • Highest 8 August, 2025

    90.6 °F

Climate (2020–Present)

Fond Du Lac County Airport (24.9 miles)

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  • Average Low 2020–2025

    39.9 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    58.4 °F
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