Norwalk Weather Forecast

    • 46
    • 77

    Mostly Sunny

    • 55
    • 79

    Mostly Sunny

    • 62
    • 81

    Partly Sunny

    • 58
    • 82

    Slight Chance Rain Showers

    • 54
    • 81

    Mostly Sunny

    • 56
    • 81

    Partly Sunny

Today 23 Aug Monroe

Mostly sunny. Highs in the upper 70s. Northwest Winds 5 to 10 Mph.

Tonight 23 Aug Monroe

Partly cloudy. Lows in the mid 40s. North Winds around 5 Mph, becoming east after midnight.

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Norwalk Temperature Statistics

August Temperature

Sparta, Sparta / Fort McCoy Airport (9.9 miles)

  • Lowest 20 August, 2026

    43.7 °F

  • Average August

    69.7 °F

  • Highest 11 August, 2026

    86.5 °F

Climate (2021–2026)

Sparta, Sparta / Fort McCoy Airport (9.9 miles)

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  • Average Low 2021–2026

    35.1 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    58.3 °F
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