Alton Weather Forecast

    • 57
    • 89

    Mostly Sunny

    • 59
    • 90

    Slight Chance Thunderstorms

    • 60
    • 89

    Chance Thunderstorms

    • 59
    • 90

    Rain Showers Likely

    • 56
    • 86

    Rain Showers

    • 55
    • 83

    Rain Showers

Today 19 Aug Southern Mountains

Sunny. Highs in the upper 70s.

Tonight 19 Aug Southern Mountains

Mostly clear. Lows in the upper 50s.

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  • Temperature Real-Time

Alton Temperature Statistics

August Temperature

Bryce Canyon Airport (25.5 miles)

  • Lowest 4 August, 2025

    30.8 °F
  • Average August

    62.8 °F
  • Highest 13 August, 2025

    89.7 °F

Climate (2020–Present)

Bryce Canyon Airport (25.5 miles)

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  • Average Low 2020–2025

    28.3 °F
  • Average 2020–2025

    44.5 °F
  • Average High 2020–2025

    58.4 °F
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