Castalia Wind ForecastUnited StatesIAWinneshiek CountyCastalia1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Castalia wind forecast issued today at 7:38 pm. Next forecast at approx. 7:38 am.Castalia Wind Statistics May WindDecorah (11.8 miles)2026AprilMayStrongest 4 May, 202618.3mph NWAverage May7.9mphStrongest 8 April, 202624.2mph SSWAverage April9.7mphStrongest 14 January, 202627.7mph NNWAverage 20268.9mphClimate (2010–Present)Decorah (11.8 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 5 March, 202531.1mph NNWAverage 2021–20268mphGet WillyWeather+ to remove ads