Blackburn Airport Weather Forecast

    • 22
    • 24

    Snow

    • 5
    • 28

    Snow Likely

    • 10
    • 18

    Mostly Cloudy

    • 8
    • 22

    Mostly Cloudy

    • 13
    • 23

    Mostly Cloudy

    • 20
    • 29

    Mostly Cloudy

    • 17
    • 31

    Mostly Cloudy

Today 30 Dec Dane

Light snow. New snow accumulation up to 1 inch. Highs in the mid 20s. Southwest Winds 5 to 10 Mph. Chance of snow 90 percent.

Tonight 30 Dec Dane

Not as cold. Cloudy. Light snow in the Evening, then chance of light snow late in the evening. Little snow accumulation. Near steady temperature in the lower 20s. Northwest Winds 5 to 10 Mph. Chance of snow 80 percent.

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Blackburn Airport Temperature Statistics

December Temperature

Janesville-Rock County (18 miles)

  • Lowest 14 December, 2025

    -7.6 °F

  • Average December

    23.6 °F

  • Highest 18 December, 2025

    46.4 °F

Climate (2020–Present)

Janesville-Rock County (18 miles)

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  • Average Low 2020–2025

    40.4 °F

  • Average 2020–2025

    48.7 °F

  • Average High 2020–2025

    60.3 °F
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