Alto Weather Forecast

    • 3
    • 32

    Chance Freezing Rain

    • 10
    • 20

    Partly Sunny

    • 27
    • 35

    Chance Snow

    • 20
    • 35

    Mostly Cloudy

    • 32
    • 40

    Mostly Cloudy

    • 27
    • 46

    Mostly Cloudy

Today 20 Dec Fond Du Lac

Not as cold. Cloudy with chance of light freezing rain and snow in the Morning, then cloudy with chance of light snow late in the morning. Sunny in the afternoon. Highs in the lower 30s. West Winds 15 to 20 Mph. Chance of precipitation 50 percent.

Tonight 20 Dec Fond Du Lac

Cloudy. A 20 percent chance of light freezing rain and snow early in the morning. Lows around 13. South Winds 10 to 20 Mph.

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Alto Temperature Statistics

December Temperature

Fond Du Lac County Airport (16.2 miles)

  • Lowest 14 December, 2025

    -8 °F

  • Average December

    15.7 °F

  • Highest 17 December, 2025

    37.9 °F

Climate (2020–Present)

Fond Du Lac County Airport (16.2 miles)

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  • Average Low 2020–2025

    39.8 °F

  • Average 2020–2025

    49.2 °F

  • Average High 2020–2025

    58.4 °F
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