Merrimack River - Shad Creek Entrance Rainfall ForecastUnited StatesMAEssex CountyMerrimack River - Shad Creek EntranceToday 18 Apr10%Sat 19 Apr20%Sun 20 Apr20%Mon 21 AprNo RainTue 22 Apr60%Wed 23 Apr5%Thu 24 Apr5%Merrimack River - Shad Creek Entrance rainfall forecast issued today at 7:04 pm. Next forecast at approx. 9:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Boston RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads