Sumter Wind ForecastUnited StatesSCSumter CountySumter1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Sumter wind forecast issued today at 4:34 pm. Next forecast at approx. 4:34 am.Sumter Wind Statistics August WindSumter Airport (5 miles)2025JulyAugustStrongest 1 August, 202513.9mph NEAverage August6.3mphStrongest 6 July, 202517.2mph NNWAverage July6.8mphStrongest 1 March, 202519.7mph WAverage 20257.3mphClimate (2010–Present)Sumter Airport (5 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 31 March, 202223mph SAverage 2020–20257.1mphGet WillyWeather+ to remove ads