Norwalk Weather Forecast

    • 56
    • 79

    Rain Showers Likely

    • 55
    • 80

    Becoming Sunny

    • 61
    • 82

    Rain Showers Likely

    • 58
    • 81

    Chance Thunderstorms

    • 53
    • 80

    Mostly Sunny

    • 56
    • 79

    Partly Sunny

    • 59
    • 80

    Partly Sunny

Today 18 Aug Monroe

Showers likely with a chance of Thunderstorms. Near steady temperature in the upper 70s. Light Winds. Chance of rain 60 percent.

Tonight 18 Aug Monroe

Partly cloudy. A chance of Showers and Thunderstorms this evening. Patchy fog after midnight. Lows in the mid 50s. West Winds around 5 Mph, becoming light Winds after midnight. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Norwalk Temperature Statistics

August Temperature

Sparta, Sparta / Fort McCoy Airport (9.9 miles)

  • Lowest 6 August, 2026

    48.6 °F

  • Average August

    71.1 °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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