Rock Valley Wind ForecastUnited StatesIASioux CountyRock Valley1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Rock Valley wind forecast issued today at 9:30 am. Next forecast at approx. 9:30 pm.Rock Valley Wind Statistics June WindSheldon (23 miles)2025MayJuneStrongest 2 June, 202527.7mph SSWAverage June9.7mphStrongest 15 May, 202535.8mph WSWAverage May11mphStrongest 5 March, 202535.8mph NNWAverage 202512mphClimate (2010–Present)Sheldon (23 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 15 December, 202146.1mph WAverage 2020–202511mphGet WillyWeather+ to remove ads