Grant Lake Wind ForecastUnited StatesWAOkanogan CountyGrant Lake1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Grant Lake wind forecast issued today at 5:33 am. Next forecast at approx. 5:33 pm.Grant Lake Wind Statistics May WindOmak Airport (25.5 miles)2026AprilMayStrongest 2 May, 202636.9mph WNWAverage May8.4mphStrongest 7 April, 202651mph NAverage April7.8mphStrongest 7 April, 202651mph NAverage 20266.7mphClimate (2010–Present)Omak Airport (25.5 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 14 July, 202565.1mph NWAverage 2021–20267.5mphGet WillyWeather+ to remove ads