Castalia Wind ForecastUnited StatesIAWinneshiek CountyCastalia1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Castalia wind forecast issued today at 11:32 am. Next forecast at approx. 11:32 pm. Wind Speed Wind GustCastalia Wind Statistics August WindDecorah (11.8 miles)2026JulyAugustStrongest 1 August, 202615mph NNEAverage August6.1mphStrongest 31 July, 202618.3mph NEAverage July5.7mphStrongest 14 January, 202627.7mph NNWAverage 20267.9mphClimate (2021–2026)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