Fairfax Wind ForecastUnited StatesSDGregory CountyFairfax1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Fairfax wind forecast issued today at 3:33 am. Next forecast at approx. 3:33 pm.Fairfax Wind Statistics July WindO'Neill / Baker Field (39.8 miles)2025JuneJulyStrongest – Average July–Strongest 8 June, 202527.7mph NWAverage June9.5mphStrongest 14 March, 202533.3mph NWAverage 202510.4mphClimate (2010–Present)O'Neill / Baker Field (39.8 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 15 December, 202148.3mph NWAverage 2020–202510.2mphGet WillyWeather+ to remove ads