Gutzmers Twin Oaks Airport Weather Forecast

    • 59
    • 79

    Partly Sunny

    • 68
    • 83

    Rain Showers

    • 55
    • 81

    Chance Rain Showers

    • 53
    • 77

    Mostly Sunny

    • 61
    • 80

    Chance Rain Showers

    • 59
    • 81

    Partly Sunny

Today 7 Sep Jefferson

Mostly sunny. Highs around 80. Southeast Winds 5 to 10 Mph.

Tonight 7 Sep Jefferson

Partly cloudy. Lows in the upper 50s. Southeast Winds up to 10 Mph.

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Gutzmers Twin Oaks Airport Temperature Statistics

September Temperature

Janesville-Rock County (21.1 miles)

  • Lowest 5 September, 2026

    64.4 °F

  • Average September

    76.1 °F

  • Highest 1 September, 2026

    91.4 °F

Climate (2021–2026)

Janesville-Rock County (21.1 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.3 °F
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