Etna Rainfall ForecastUnited StatesMEPenobscot CountyEtnaToday 19 Apr60%Sun 20 Apr25%Mon 21 Apr15%Tue 22 Apr70%Wed 23 Apr20%Thu 24 Apr10%Fri 25 Apr20%Etna rainfall forecast issued today at 7:04 pm. Next forecast at approx. 9:04 am.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