Jana Airport Weather Forecast

    • -16
    • 17

    Flurries

    • -16
    • -6

    Cold

    • -8
    • 2

    Chance Snow

    • -8
    • 10

    Chance Snow

    • 0
    • 11

    Cold

    • 1
    • 19

    Mostly Cloudy

Today 22 Jan Dane

Partly sunny. Scattered Flurries late in the morning. Isolated snow Showers in the afternoon. Patchy blowing snow early in the afternoon. Highs around 15. West Winds 10 to 20 Mph. Chance of snow 20 percent.

Tonight 22 Jan Dane

Bitterly cold. Much Colder. Partly cloudy. Scattered Flurries through around midnight. Lows around 17 below. Northwest Winds 15 to 20 Mph. Lowest wind chill Readings 30 below to 40 below zero in the late evening and overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jana Airport Temperature Statistics

January Temperature

Janesville-Rock County (17.4 miles)

  • Lowest 20 January, 2026

    -5.8 °F

  • Average January

    24.4 °F

  • Highest 8 January, 2026

    55.4 °F

Climate (2021–Present)

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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