Castalia Wind ForecastUnited StatesIAWinneshiek CountyCastalia1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Castalia wind forecast issued today at 5:34 pm. Next forecast at approx. 5:34 am. Wind Speed Wind GustCastalia Wind Statistics September WindDecorah (11.8 miles)2026AugustSeptemberStrongest 2 September, 202620.8mph NNWAverage September6mphStrongest 29 August, 202618.3mph SAverage August6.1mphStrongest 14 January, 202627.7mph NNWAverage 20267.7mphClimate (2021–2026)Decorah (11.8 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 5 March, 202531.1mph NNWAverage 2021–20267.9mphGet WillyWeather+ to remove ads