Norwalk Weather Forecast

    • 43
    • 70

    Becoming Sunny

    • 59
    • 72

    Rain Showers

    • 51
    • 75

    Chance Rain Showers

    • 55
    • 67

    Rain Showers Likely

    • 51
    • 70

    Chance Rain Showers

    • 52
    • 69

    Chance Rain Showers

Today 13 Sep Monroe

Partly sunny. Highs around 70. Northwest Winds 5 to 10 Mph.

Tonight 13 Sep Monroe

Mostly clear. Lows in the lower 40s. Northwest Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Norwalk Temperature Statistics

September Temperature

Sparta, Sparta / Fort McCoy Airport (9.9 miles)

  • Lowest 10 September, 2026

    48.6 °F

  • Average September

    72.8 °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

    47.8 °F

  • Average High 2021–2026

    58.5 °F
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