Johnston Wind ForecastUnited StatesIAPolk CountyJohnston1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Johnston wind forecast issued today at 11:36 am. Next forecast at approx. 11:36 pm.Johnston Wind Statistics June WindAnkeny Regional Airport (6.8 miles)2026MayJuneStrongest – Average June–Strongest 4 May, 202621.9mph NNWAverage May8.4mphStrongest 21 January, 202628.9mph WNWAverage 20269.6mphClimate (2010–Present)Ankeny Regional Airport (6.8 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 5 March, 202535.8mph NNWAverage 2021–20269.2mphGet WillyWeather+ to remove ads