Alton Wind ForecastUnited StatesILMadison CountyAlton1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Alton wind forecast issued today at 5:33 am. Next forecast at approx. 5:33 pm.Alton Wind Statistics April WindSt. Louis Regional Airport (8.1 miles)2026MarchAprilStrongest – Average April–Strongest 22 March, 202627.7mph NAverage March9.5mphStrongest 22 March, 202627.7mph NAverage 20268.9mphClimate (2010–Present)St. Louis Regional Airport (8.1 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 10 August, 2021113mph NAverage 2021–20268.1mphGet WillyWeather+ to remove ads