Monona Weather Forecast

    • 70
    • 87

    Chance Thunderstorms

    • 72
    • 88

    Chance Thunderstorms

    • 69
    • 87

    Chance Thunderstorms

    • 68
    • 86

    Chance Thunderstorms

    • 64
    • 82

    Slight Chance Thunderstorms

    • 61
    • 79

    Partly Sunny

Today 15 Aug Clayton

Mostly sunny. Highs in the upper 80s. South Winds 5 to 10 Mph. Heat index Values in the mid 90s.

Tonight 15 Aug Clayton

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then a slight chance of Showers and Thunderstorms after midnight. Humid with Lows in the lower 70s. South Winds 5 to 10 Mph. Chance of rain 50 percent. Heat index Values in the mid 90s early in the evening.

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Monona Temperature Statistics

August Temperature

Prairie Du Chien Municipal Airport (13.7 miles)

  • Lowest 1 August, 2025

    52.7 °F

  • Average August

    72 °F

  • Highest 8 August, 2025

    89.6 °F

Climate (2020–Present)

Prairie Du Chien Municipal Airport (13.7 miles)

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  • Average Low 2020–2025

    40.2 °F

  • Average 2020–2025

    49.6 °F

  • Average High 2020–2025

    59 °F
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