Norwalk Weather Forecast

    • 52
    • 87

    Slight Chance Thunderstorms

    • 51
    • 79

    Sunny

    • 56
    • 85

    Mostly Sunny

    • 52
    • 85

    Partly Sunny

    • 53
    • 81

    Mostly Sunny

    • 54
    • 82

    Mostly Sunny

Today 27 May Monroe

Mostly sunny. Highs in the upper 80s. East Winds around 5 Mph, becoming northeast this afternoon.

Tonight 27 May Monroe

Partly cloudy. A slight chance of Showers and Thunderstorms in the evening. Lows in the lower 50s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Norwalk Temperature Statistics

May Temperature

Sparta, Sparta / Fort McCoy Airport (9.9 miles)

  • Lowest 6 May, 2026

    25.5 °F

  • Average May

    54.6 °F

  • Highest 15 May, 2026

    84.9 °F

Climate (2021–Present)

Sparta, Sparta / Fort McCoy Airport (9.9 miles)

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  • Average Low 2021–2026

    34.9 °F

  • Average 2021–2026

    47.5 °F

  • Average High 2021–2026

    58.2 °F
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