Harper Wind ForecastUnited StatesORMalheur CountyHarper1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Harper wind forecast issued today at 8:29 am. Next forecast at approx. 8:29 pm.Harper Wind Statistics May WindOntario Municipal Airport (31.7 miles)2025AprilMayStrongest – Average May–Strongest 16 April, 202550.1mph NAverage April7.3mphStrongest 6 March, 202553mph NNWAverage 20255.9mphClimate (2010–Present)Ontario Municipal Airport (31.7 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 29 April, 202457.9mph NWAverage 2020–20256.3mphGet WillyWeather+ to remove ads