Raritan River - South Amboy Rainfall ForecastUnited StatesNJMiddlesex CountyRaritan River - South AmboyToday 17 AprNo RainFri 18 AprNo RainSat 19 Apr15%Sun 20 Apr15%Mon 21 Apr20%Tue 22 Apr45%Wed 23 Apr5%Raritan River - South Amboy rainfall forecast issued today at 11:04 am. Next forecast at approx. 1:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Philadelphia RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads