Best time to visit Alton
A month-by-month weather verdict for Alton, United States, scored on temperature, rain, sunshine and humidity.
Quick verdict by month
Jan52
Feb60
Mar81
Apr84
May84
Jun80
Jul75
Aug78
Sep87
Oct95
Nov76
Dec59
Best months
OctoberSeptemberAprilMay
What makes October best
20°CAvg high
8hSun / day
9Rain days
Timing by trip style
- CultureMarch–November
Better in October nearby
- Anaheim, United States97/100