Norwalk Weather Forecast

    • 59
    • 83

    Decreasing Clouds

    • 58
    • 82

    Mostly Cloudy

    • 61
    • 81

    Chance Thunderstorms

    • 66
    • 86

    Rain Showers

    • 56
    • 80

    Partly Sunny

    • 56
    • 78

    Partly Sunny

Today 5 Sep Monroe

Partly sunny. Highs in the lower 80s. East Winds 5 to 10 Mph.

Tonight 5 Sep Monroe

Partly cloudy. Lows in the upper 50s. East Winds around 5 Mph.

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  • Temperature Real-Time

Norwalk Temperature Statistics

September Temperature

Sparta, Sparta / Fort McCoy Airport (9.9 miles)

  • Lowest 2 September, 2026

    65.3 °F

  • Average September

    75.9 °F

  • Highest 1 September, 2026

    91 °F

Climate (2021–2026)

Sparta, Sparta / Fort McCoy Airport (9.9 miles)

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  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    58.4 °F
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