Black Bay Rainfall ForecastUnited StatesMNKoochiching CountyBlack BayToday 19 Apr15%Sun 20 AprNo RainMon 21 Apr10%Tue 22 Apr40%Wed 23 Apr45%Thu 24 Apr10%Fri 25 Apr20%Black Bay rainfall forecast issued today at 5:04 pm. Next forecast at approx. 7:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Duluth RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads