Norwalk Weather Forecast

    • 57
    • 74

    Chance Rain Showers

    • 55
    • 76

    Rain Showers Likely

    • 56
    • 67

    Rain Showers

    • 53
    • 70

    Chance Rain Showers

    • 51
    • 67

    Chance Rain Showers

    • 51
    • 66

    Slight Chance Rain Showers

Today 16 Sep Monroe

Mostly sunny. Highs in the mid 70s. East Winds around 5 Mph.

Tonight 16 Sep Monroe

Mostly cloudy. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Lows in the mid 50s. East Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • 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

    69.5 °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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