Alcester Wind ForecastUnited StatesSDUnion CountyAlcester1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Alcester wind forecast issued today at 7:28 am. Next forecast at approx. 7:28 pm.Alcester Wind Statistics May WindLe Mars Municipal Airport (28 miles)2025AprilMayStrongest – Average May–Strongest 12 April, 202536.9mph SAverage April12.5mphStrongest 19 March, 202536.9mph NAverage 202511.6mphClimate (2010–Present)Le Mars Municipal Airport (28 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 23 April, 202242.5mph SSWAverage 2020–202510.3mphGet WillyWeather+ to remove ads