Puerto Negro Rainfall ForecastUnited StatesPRViequesPuerto NegroToday 15 Apr30%Wed 16 Apr60%Thu 17 Apr60%Fri 18 Apr60%Sat 19 Apr50%Sun 20 Apr50%Mon 21 Apr40%Puerto Negro rainfall forecast issued today at 1:04 am. Next forecast at approx. 3:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time San Juan RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads