Merrimack River - The Basin Wind ForecastUnited StatesMAEssex CountyMerrimack River - The Basin1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast NOAAWind Real-Time Merrimack River - The Basin wind forecast issued today at 6:31 pm. Next forecast at approx. 6:31 am.Get WillyWeather+ to remove ads