Cape Cod National Seashore Rainfall ForecastUnited StatesMABarnstable CountyCape Cod National SeashoreToday 17 AprNo RainFri 18 Apr15%Sat 19 Apr15%Sun 20 Apr20%Mon 21 Apr20%Tue 22 Apr45%Wed 23 Apr25%Cape Cod National Seashore rainfall forecast issued today at 7:04 am. Next forecast at approx. 9:04 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