Duncan Wind ForecastUnited StatesIAHancock CountyDuncan1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Duncan wind forecast issued today at 9:31 pm. Next forecast at approx. 9:31 am.Duncan Wind Statistics May WindForest City Municipal Airport (9.9 miles)2025AprilMayStrongest – Average May–Strongest 14 April, 202530mph WNWAverage April12.5mphStrongest 5 March, 202536.9mph NNWAverage 202511.3mphClimate (2010–Present)Forest City Municipal Airport (9.9 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 15 December, 202138mph SWAverage 2020–20259.7mphGet WillyWeather+ to remove ads