Koon Lake Weather Forecast

    • 43
    • 63

    Mostly Cloudy

    • 41
    • 63

    Mostly Sunny

    • 42
    • 65

    Mostly Sunny

    • 44
    • 68

    Areas Fog

    • 44
    • 70

    Areas Fog

    • 47
    • 69

    Mostly Cloudy

Today 21 Sep Shawano

Mostly cloudy. Highs in the lower 60s. East wind 10 to 15 Mph.

Tonight 21 Sep Shawano

Mostly cloudy. Lows in the lower 40s. Northeast wind 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Koon Lake Temperature Statistics

September Temperature

Shawano Municipal Airport (12.4 miles)

  • Lowest 14 September, 2026

    41.2 °F

  • Average September

    67.2 °F

  • Highest 1 September, 2026

    91.6 °F

Climate (2021–2026)

Shawano Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    39.2 °F

  • Average 2021–2026

    48.5 °F

  • Average High 2021–2026

    57.4 °F
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