Nantucket Harbor - Pocomo Head Rainfall ForecastUnited StatesMANantucket CountyNantucket Harbor - Pocomo HeadToday 16 AprNo RainThu 17 AprNo RainFri 18 Apr15%Sat 19 Apr20%Sun 20 Apr25%Mon 21 Apr10%Tue 22 Apr35%Nantucket Harbor - Pocomo Head rainfall forecast issued today at 5:04 am. Next forecast at approx. 7:04 pm.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