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 yesterday at 11:35 pm. Next forecast at approx. 11:35 am.Rock Valley Wind Statistics May WindSheldon (23 miles)2026AprilMayStrongest 14 May, 202628.9mph SAverage May9.9mphStrongest 4 April, 202631.1mph NWAverage April11.7mphStrongest 18 February, 202638mph WAverage 202610.9mphClimate (2010–Present)Sheldon (23 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 15 December, 202146.1mph WAverage 2021–202610.8mphGet WillyWeather+ to remove ads