Miller Airport Weather Forecast

    • 22
    • 27

    Increasing Clouds

    • 33
    • 38

    Mostly Cloudy

    • 26
    • 44

    Mostly Cloudy

    • 38
    • 40

    Slight Chance Rain

    • 37
    • 46

    Cloudy

    • 30
    • 46

    Mostly Cloudy

    • 20
    • 41

    Mostly Cloudy

Today 21 Dec Winnebago

Sunny. Highs in the upper 20s. Southwest Winds around 5 Mph.

Tonight 21 Dec Winnebago

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 20s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Miller Airport Temperature Statistics

December Temperature

Janesville-Rock County (9.3 miles)

  • Lowest 14 December, 2025

    -7.6 °F

  • Average December

    18.9 °F

  • Highest 18 December, 2025

    46.4 °F

Climate (2020–Present)

Janesville-Rock County (9.3 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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