Grand Lake Wind ForecastUnited StatesCOGrand CountyGrand Lake1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Grand Lake wind forecast issued today at 4:25 am. Next forecast at approx. 4:25 pm.Grand Lake Wind Statistics September WindBerthoud Pass (31.7 miles)2025AugustSeptemberStrongest – Average September–Strongest 9 August, 202536.9mph WNWAverage August12.4mphStrongest 24 January, 202554.1mph NWAverage 202518.5mphClimate (2010–Present)Berthoud Pass (31.7 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 7 May, 202461.1mph WNWAverage 2020–202519.1mphGet WillyWeather+ to remove ads