Grand Isle Wind ForecastUnited StatesLAJefferson ParishGrand Isle1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Grand Isle wind forecast issued today at 8:31 pm. Next forecast at approx. 8:31 am.Grand Isle Wind Statistics January WindPort Fourchon (14.9 miles)2025DecemberJanuaryStrongest – Average January–Strongest – Average December–Strongest – Average 2025–Climate (2011–Present)Port Fourchon (14.9 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 21 September, 202034.4mph ESEAverage 2020–202010.4mphGet WillyWeather+ to remove ads