Dorchester Wind ForecastUnited StatesIAAllamakee CountyDorchester1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Dorchester wind forecast issued today at 11:32 am. Next forecast at approx. 11:32 pm.Dorchester Wind Statistics August WindDecorah (16.8 miles)2025JulyAugustStrongest 6 August, 202516.1mph SSEAverage August6.2mphStrongest 29 July, 202518.3mph NAverage July6.2mphStrongest 5 March, 202531.1mph NNWAverage 20258.2mphClimate (2010–Present)Decorah (16.8 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 5 March, 202531.1mph NNWAverage 2020–20258mphGet WillyWeather+ to remove ads