Garnavillo Weather Forecast

    • 61
    • 73

    Rain Showers

    • 61
    • 72

    Rain Showers

    • 51
    • 66

    Rain Showers Likely

    • 45
    • 64

    Mostly Sunny

    • 48
    • 64

    Partly Sunny

    • 43
    • 64

    Mostly Sunny

    • 45
    • 61

    Mostly Sunny

Today 29 Sep Clayton

Partly cloudy. Lows in the mid 40s. Highs in the lower 60s.

Tonight 29 Sep Clayton

Showers likely with a slight chance of Thunderstorms. Warmer with Lows in the lower 60s. South Winds 10 to 15 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Garnavillo Temperature Statistics

September Temperature

Prairie Du Chien Municipal Airport (11.8 miles)

  • Lowest 23 September, 2026

    45.9 °F

  • Average September

    66.4 °F

  • Highest 4 September, 2026

    90.7 °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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