Mystic Wind ForecastUnited StatesSDPennington CountyMystic1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Mystic wind forecast issued today at 10:28 pm. Next forecast at approx. 10:28 am.Mystic Wind Statistics May WindCuster, Custer County Airport (23.6 miles)2025AprilMayStrongest – Average May–Strongest 13 April, 202550.1mph WAverage April6.7mphStrongest 21 March, 202553.9mph WAverage 20257.1mphClimate (2010–Present)Custer, Custer County Airport (23.6 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 7 May, 202464mph WAverage 2020–20257.2mphGet WillyWeather+ to remove ads