Marathon Wind ForecastUnited StatesIABuena Vista CountyMarathon1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Marathon wind forecast issued today at 11:31 am. Next forecast at approx. 11:31 pm. Wind Speed Wind GustMarathon Wind Statistics August WindStorm Lake (21.7 miles)2026JulyAugustStrongest 29 August, 202619.7mph SSEAverage August8.5mphStrongest 3 July, 202619.7mph EAverage July7.1mphStrongest 16 January, 202639.1mph NWAverage 202611.8mphClimate (2021–2026)Storm Lake (21.7 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 15 December, 202149.4mph WAverage 2021–202612mphGet WillyWeather+ to remove ads