Jana Airport Weather Forecast

    • 33
    • 38

    Rain

    • 33
    • 44

    Chance Rain

    • 35
    • 46

    Slight Chance Rain

    • 9
    • 41

    Breezy

    • 10
    • 21

    Partly Sunny

    • 13
    • 27

    Mostly Cloudy

Today 25 Dec Dane

Mostly cloudy. Highs in the upper 30s. East Winds 5 to 15 Mph.

Tonight 25 Dec Dane

Cloudy. Slight chance of light rain through around Midnight, then light rain after midnight. Lows in the lower 30s. Southeast Winds 5 to 15 Mph. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jana Airport Temperature Statistics

December Temperature

Janesville-Rock County (17.4 miles)

  • Lowest 14 December, 2025

    -7.6 °F

  • Average December

    20.2 °F

  • Highest 18 December, 2025

    46.4 °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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