Jana Airport Weather Forecast

    • 59
    • 71

    Rain Showers

    • 52
    • 66

    Slight Chance Rain Showers

    • 48
    • 63

    Mostly Cloudy

    • 46
    • 62

    Partly Sunny

    • 48
    • 65

    Mostly Cloudy

    • 50
    • 67

    Partly Sunny

Today 19 Sep Dane

Showers and scattered Thunderstorms. Some Thunderstorms may produce heavy rainfall. Highs in the lower 70s. Southeast Winds 5 to 15 Mph. Chance of precipitation near 100 percent.

Tonight 19 Sep Dane

Cloudy. Rain Showers and scattered Thunderstorms through around Midnight, then scattered rain Showers after midnight. Lows in the upper 50s. Northeast Winds 5 to 15 Mph. Chance of precipitation 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jana Airport Temperature Statistics

September Temperature

Janesville-Rock County (17.4 miles)

  • Lowest 14 September, 2026

    42.8 °F

  • Average September

    67.8 °F

  • Highest 1 September, 2026

    91.4 °F

Climate (2021–2026)

Janesville-Rock County (17.4 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.2 °F
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