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 2:32 am. Next forecast at approx. 2:32 pm. Wind Speed Wind GustGrand Isle Wind Statistics November WindPort Fourchon (14.9 miles)2026OctoberNovemberStrongest – Average November–Strongest – Average October–Strongest – Average 2026–Climate (–)Port Fourchon (14.9 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 29 September, 202023 mph NNEAverage –18 mphGet WillyWeather+ to remove ads