Jana Airport Weather Forecast

    • 22
    • 24

    Wintry Mix Likely

    • 12
    • 34

    Snow Likely

    • 5
    • 18

    Chance Snow

    • 1
    • 14

    Slight Chance Snow

    • -3
    • 7

    Cold

    • 7
    • 12

    Mostly Cloudy

Today 15 Jan Dane

Mostly sunny until late Afternoon, then cloudy with a 40 percent chance of light snow late in the afternoon. Highs in the mid 20s. Northwest Winds 5 to 10 Mph shifting to the southwest 5 to 15 Mph in the afternoon.

Tonight 15 Jan Dane

Not as cold. Cloudy. Chance of light snow until early morning. Slight chance of light freezing drizzle in the late evening and overnight. Light snow likely early in the morning. Snow accumulation up to 1 inch. Lows in the lower 20s. Southwest Winds 10 to 15 Mph. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jana Airport Temperature Statistics

January Temperature

Janesville-Rock County (17.4 miles)

  • Lowest 1 January, 2026

    8.6 °F

  • Average January

    28.8 °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

    40.4 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.3 °F
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