Griswold Wind ForecastUnited StatesIACass CountyGriswold1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Griswold wind forecast issued today at 6:36 pm. Next forecast at approx. 6:36 am.Griswold Wind Statistics March WindAtlantic (11.8 miles)2026FebruaryMarchStrongest 1 March, 202615mph EAverage March10.3mphStrongest 18 February, 202626.4mph WSWAverage February8.7mphStrongest 21 January, 202634.4mph WNWAverage 20268.8mphClimate (2010–Present)Atlantic (11.8 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 10 March, 202143.8mph SWAverage 2021–20269.6mphGet WillyWeather+ to remove ads