Portage Bay Rainfall ForecastUnited StatesAKWrangell-Petersburg BoroughPortage BayToday 19 Apr45%Sun 20 Apr15%Mon 21 Apr75%Tue 22 Apr80%Wed 23 Apr45%Thu 24 Apr30%Fri 25 Apr30%Portage Bay rainfall forecast issued today at 3:04 pm. Next forecast at approx. 5:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Biorka Island RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads