Oshkosh Weather Forecast

    • -7
    • 1

    Cold

    • 3
    • 8

    Cold

    • 13
    • 21

    Mostly Cloudy

    • 26
    • 35

    Mostly Cloudy

    • 34
    • 36

    Chance Rain

    • 6
    • 36

    Partly Sunny

Today 13 Dec Winnebago

Much Colder. Partly cloudy. Highs zero to 5 above. West wind 10 to 15 Mph. Wind Chills to 30 below zero.

Tonight 13 Dec Winnebago

Clear. Lows 5 below to 10 below zero. Northwest wind 10 to 15 Mph. Wind Chills to 30 below zero.

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Oshkosh Temperature Statistics

December Temperature

Wittman Regional Airport (3.7 miles)

  • Lowest 8 December, 2025

    -2.9 °F

  • Average December

    16.7 °F

  • Highest 3 December, 2025

    28 °F

Climate (2020–Present)

Wittman Regional Airport (3.7 miles)

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  • Average Low 2020–2025

    39.8 °F

  • Average 2020–2025

    48.6 °F

  • Average High 2020–2025

    57.2 °F
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