Garnavillo Weather Forecast

    • 69
    • 82

    Chance Rain Showers

    • 60
    • 81

    Partly Sunny

    • 62
    • 80

    Slight Chance Thunderstorms

    • 63
    • 80

    Rain Showers Likely

    • 56
    • 75

    Partly Sunny

    • 57
    • 73

    Slight Chance Rain Showers

Today 15 Aug Clayton

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms this morning. Highs in the lower 80s. Southeast Winds around 5 Mph. Chance of rain 40 percent.

Tonight 15 Aug Clayton

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Humid with Lows in the upper 60s. Southwest Winds around 5 Mph, becoming west after midnight. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Garnavillo Temperature Statistics

August Temperature

Prairie Du Chien Municipal Airport (11.8 miles)

  • Lowest 3 August, 2026

    59 °F

  • Average August

    71.9 °F

  • Highest 10 August, 2026

    85.3 °F

Climate (2021–2026)

Prairie Du Chien Municipal Airport (11.8 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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