Coon Island Bay Rainfall ForecastUnited StatesTXMatagorda CountyCoon Island BayToday 16 AprNo RainThu 17 AprNo RainFri 18 AprNo RainSat 19 Apr5%Sun 20 Apr35%Mon 21 Apr25%Tue 22 Apr20%Coon Island Bay rainfall forecast issued today at 8:08 am. Next forecast at approx. 10:08 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Houston/Galveston RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads