La Riviera Rainfall ForecastUnited StatesPRArroyoLa RivieraToday 18 Apr90%Sat 19 Apr60%Sun 20 Apr60%Mon 21 Apr30%Tue 22 Apr10%Wed 23 Apr5%Thu 24 Apr5%La Riviera rainfall forecast issued today at 8:04 pm. Next forecast at approx. 10:04 am.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