Vaill Island Rainfall ForecastUnited StatesMECumberland CountyVaill IslandToday 18 Apr15%Sat 19 Apr35%Sun 20 Apr5%Mon 21 Apr5%Tue 22 Apr65%Wed 23 Apr15%Thu 24 Apr10%Vaill Island rainfall forecast issued today at 5:04 am. Next forecast at approx. 7:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Portland RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads