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 1:26 pm. Next forecast at approx. 1:26 am.Marathon Wind Statistics July WindStorm Lake (21.7 miles)2025JuneJulyStrongest 4 July, 202523mph SSWAverage July9.3mphStrongest 21 June, 202530mph SSWAverage June10.9mphStrongest 5 March, 202541.4mph NNWAverage 202512.6mphClimate (2010–Present)Storm Lake (21.7 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 15 December, 202149.4mph WAverage 2020–202512mphGet WillyWeather+ to remove ads