Norwalk Weather Forecast

    • 47
    • 64

    Increasing Clouds

    • 52
    • 67

    Mostly Cloudy

    • 48
    • 69

    Mostly Cloudy

    • 50
    • 66

    Chance Rain Showers

    • 50
    • 66

    Mostly Cloudy

    • 54
    • 71

    Partly Sunny

Today 23 Sep Monroe

Mostly cloudy in the Morning, then becoming partly sunny. A 50 percent chance of Showers. Highs in the mid 60s.

Tonight 23 Sep Monroe

Partly cloudy. Lows in the mid 40s. Light Winds.

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  • Temperature Real-Time

Norwalk Temperature Statistics

September Temperature

Sparta, Sparta / Fort McCoy Airport (9.9 miles)

  • Lowest 14 September, 2026

    36.9 °F

  • Average September

    66.8 °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

    35.3 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    58.4 °F
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