Monona Weather Forecast

    • 63
    • 85

    Decreasing Clouds

    • 61
    • 80

    Mostly Cloudy

    • 64
    • 80

    Mostly Cloudy

    • 67
    • 87

    Rain Showers Likely

    • 57
    • 82

    Partly Sunny

    • 59
    • 78

    Partly Sunny

Today 5 Sep Clayton

Areas of fog this morning. Mostly sunny. Highs in the mid 80s. Northeast Winds 5 to 10 Mph.

Tonight 5 Sep Clayton

Partly cloudy in the Evening, then becoming mostly cloudy. Humid with Lows in the mid 60s. East Winds 5 to 10 Mph.

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  • Temperature Real-Time

Monona Temperature Statistics

September Temperature

Prairie Du Chien Municipal Airport (13.7 miles)

  • Lowest 1 September, 2026

    70.7 °F

  • Average September

    77.4 °F

  • Highest 1 September, 2026

    89.6 °F

Climate (2021–2026)

Prairie Du Chien Municipal Airport (13.7 miles)

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  • Average Low 2021–2026

    40.5 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    59.5 °F
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