Alton Weather Forecast

    • 14
    • 36

    Becoming Sunny

    • 21
    • 42

    Mostly Sunny

    • 23
    • 46

    Mostly Sunny

    • 26
    • 50

    Mostly Sunny

    • 26
    • 51

    Mostly Sunny

    • 27
    • 53

    Mostly Sunny

Today 3 Dec Southern Mountains

Partly sunny with a 50 percent chance of snow. Highs in the mid 20s.

Tonight 3 Dec Southern Mountains

A 20 percent chance of snow in the evening. Mostly clear. Lows 10 to 15.

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Alton Temperature Statistics

December Temperature

Bryce Canyon Airport (25.5 miles)

  • Lowest 1 December, 2025

    10 °F

  • Average December

    19.1 °F

  • Highest 1 December, 2025

    34 °F

Climate (2020–Present)

Bryce Canyon Airport (25.5 miles)

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  • Average Low 2020–2025

    28.4 °F

  • Average 2020–2025

    44.2 °F

  • Average High 2020–2025

    58.2 °F
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