Alton Weather Forecast
- 70
- 87
Thunderstorms Likely
- 66
- 88
Partly Sunny
- 68
- 88
Mostly Sunny
- 70
- 92
Mostly Sunny
- 71
- 92
Mostly Sunny
- 70
- 91
Partly Sunny
- 71
- 90
Chance Thunderstorms
Today 1 Jul Jefferson
Showers and Thunderstorms. Highs in the upper 80s. West Winds 5 to 10 Mph. Chance of rain 80 percent.
Tonight 1 Jul Jefferson
Mostly cloudy. Showers and Thunderstorms likely this evening. Lows around 70. West Winds around 5 Mph this Evening, becoming light and variable. Chance of rain 70 percent.
Alton Temperature Statistics
July Temperature
Birmingham, Birmingham International Airport (6.2 miles)
Lowest
–Average July
–Highest
–
Climate (2020–Present)
Birmingham, Birmingham International Airport (6.2 miles)
Average Low 2020–2025
55.4 °FAverage 2020–2025
65.2 °FAverage High 2020–2025
75.5 °F