Glenn Wind ForecastUnited StatesILJackson CountyGlenn1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Glenn wind forecast issued today at 3:35 pm. Next forecast at approx. 3:35 am.Glenn Wind Statistics May WindSouthern Illinois Airport (18 miles)2026AprilMayStrongest – Average May–Strongest 2 April, 202648.1mph SSWAverage April10.9mphStrongest 15 March, 202661.1mph SAverage 20269.6mphClimate (2010–Present)Southern Illinois Airport (18 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 5 April, 202367.1mph SSWAverage 2021–20267.5mphGet WillyWeather+ to remove ads