Alton Weather Forecast
- 44
- 69
Mostly Sunny
- 55
- 70
Rain Showers
- 66
- 76
Rain Showers
- 69
- 83
Chance Thunderstorms
- 62
- 82
Rain Showers Likely
- 54
- 76
Chance Rain Showers
Today 24 Apr Madison
Sunny. Highs in the upper 60s. North Winds 5 to 10 Mph.
Tonight 24 Apr Madison
Mostly clear. Lows in the mid 40s. East Winds 5 to 10 Mph.
Alton Temperature Statistics
April Temperature
St. Louis Regional Airport (8.1 miles)
Lowest 6 April, 2024
31.5 °FAverage April
54.7 °FHighest 14 April, 2024
84.2 °F
Climate (2019–Present)
St. Louis Regional Airport (8.1 miles)
Average Low 2019–2024
45.8 °FAverage 2019–2024
53.5 °FAverage High 2019–2024
65.5 °F