Byron Weather Forecast

    • -10
    • 1

    Cold

    • 0
    • 6

    Cold

    • 8
    • 20

    Mostly Cloudy

    • 25
    • 34

    Mostly Cloudy

    • 32
    • 38

    Chance Rain

    • 4
    • 36

    Partly Sunny

Today 13 Dec Fond Du Lac

Bitterly cold. Much Colder. Partly sunny early in the afternoon then clearing. Highs around 1. Northwest Winds 10 to 20 Mph. Wind chill Readings 15 below to 25 below zero.

Tonight 13 Dec Fond Du Lac

Bitterly cold. Mostly clear. Lows around 9 below. Northwest Winds 10 to 15 Mph with Gusts to around 30 Mph. Wind chill Readings 21 below to 31 below zero.

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Byron Temperature Statistics

December Temperature

Fond Du Lac County Airport (8.1 miles)

  • Lowest 8 December, 2025

    -4 °F

  • Average December

    16.8 °F

  • Highest 10 December, 2025

    30 °F

Climate (2020–Present)

Fond Du Lac County Airport (8.1 miles)

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  • Average Low 2020–2025

    39.8 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    58.4 °F
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