Tunnel City Weather Forecast

    • 40
    • 57

    Mostly Cloudy

    • 38
    • 60

    Partly Sunny

    • 40
    • 63

    Mostly Sunny

    • 53
    • 70

    Chance Rain Showers

    • 53
    • 71

    Chance Rain Showers

    • 48
    • 72

    Partly Sunny

Today 5 Sep Monroe

Mostly cloudy this Morning, then becoming partly sunny. A chance of Sprinkles. Highs in the upper 50s. West Winds 10 to 20 Mph with Gusts up to 35 Mph.

Tonight 5 Sep Monroe

Mostly cloudy in the Evening, then becoming partly cloudy. A 20 percent chance of rain Showers. Lows in the lower 40s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

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Tunnel City Temperature Statistics

September Temperature

Sparta, Sparta / Fort McCoy Airport (8.7 miles)

  • Lowest 3 September, 2025

    39.9 °F

  • Average September

    56.9 °F

  • Highest 3 September, 2025

    64 °F

Climate (2020–Present)

Sparta, Sparta / Fort McCoy Airport (8.7 miles)

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  • Average Low 2020–2025

    34.5 °F

  • Average 2020–2025

    47.2 °F

  • Average High 2020–2025

    57.8 °F
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