Jana Airport Weather Forecast

    • 58
    • 83

    Mostly Sunny

    • 58
    • 85

    Mostly Sunny

    • 58
    • 84

    Partly Sunny

    • 59
    • 83

    Chance Rain Showers

    • 57
    • 74

    Chance Thunderstorms

    • 54
    • 72

    Chance Rain Showers

Today 15 Sep Dane

Sunny. Highs in the lower 80s. Southeast Winds up to 10 Mph.

Tonight 15 Sep Dane

Mostly clear. Lows in the upper 50s. Southeast Winds up to 5 Mph.

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  • Temperature Real-Time

Jana Airport Temperature Statistics

September Temperature

Janesville-Rock County (17.4 miles)

  • Lowest 7 September, 2025

    39.2 °F

  • Average September

    56.8 °F

  • Highest 12 September, 2025

    82.4 °F

Climate (2020–Present)

Janesville-Rock County (17.4 miles)

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  • Average Low 2020–2025

    40.4 °F

  • Average 2020–2025

    48.7 °F

  • Average High 2020–2025

    60.2 °F
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