Walnut Beach Rainfall ForecastUnited StatesCTNew Haven CountyWalnut BeachToday 17 AprNo RainFri 18 Apr5%Sat 19 Apr15%Sun 20 Apr20%Mon 21 Apr20%Tue 22 Apr55%Wed 23 Apr10%Walnut Beach rainfall forecast issued today at 3:04 pm. Next forecast at approx. 5:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Upton RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads