Harleyville Wind ForecastUnited StatesSCDorchester CountyHarleyville1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Harleyville wind forecast issued today at 6:33 pm. Next forecast at approx. 6:33 am.Harleyville Wind Statistics July WindSummerville Airport (14.3 miles)2025JuneJulyStrongest – Average July–Strongest 10 June, 202515mph SWAverage June5.4mphStrongest 5 March, 202518.3mph SAverage 20256.4mphClimate (2010–Present)Summerville Airport (14.3 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 3 January, 202221.9mph WSWAverage 2020–20256.2mphGet WillyWeather+ to remove ads