Penobscot River - Penobscot Bridge Rainfall ForecastUnited StatesMEPenobscot CountyPenobscot River - Penobscot BridgeToday 16 Apr70%Thu 17 Apr5%Fri 18 Apr15%Sat 19 Apr65%Sun 20 Apr25%Mon 21 Apr10%Tue 22 Apr35%Penobscot River - Penobscot Bridge rainfall forecast issued today at 12:04 pm. Next forecast at approx. 2:04 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