Harry D Fenton Airport Weather Forecast

    • 12
    • 18

    Increasing Clouds

    • 7
    • 25

    Chance Snow

    • -11
    • 16

    Partly Sunny

    • -16
    • -4

    Cold

    • -12
    • -1

    Cold

    • -3
    • 8

    Cold

Today 20 Jan Winnebago

Sunny in the Morning, then becoming partly cloudy. Highs around 19. Southwest Winds 5 to 10 Mph. Wind chill Values as low as 12 below in the morning.

Tonight 20 Jan Winnebago

Cloudy. A chance of snow in the Evening, then snow after midnight. Total snow accumulation of 1 to 3 Inches. Lows around 13. South Winds 5 to 10 Mph. Chance of precipitation 90 percent.

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Harry D Fenton Airport Temperature Statistics

January Temperature

Janesville-Rock County (9.9 miles)

  • Lowest 1 January, 2026

    8.6 °F

  • Average January

    27.6 °F

  • Highest 8 January, 2026

    55.4 °F

Climate (2021–Present)

Janesville-Rock County (9.9 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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