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.
Alton Temperature Statistics
August Temperature
Bryce Canyon Airport (25.5 miles)
Lowest 4 August, 2025
30.8 °FAverage August
62.8 °FHighest 13 August, 2025
89.7 °F
Climate (2020–Present)
Bryce Canyon Airport (25.5 miles)
Average Low 2020–2025
28.3 °FAverage 2020–2025
44.5 °FAverage High 2020–2025
58.4 °F