Belfast Harbour Entrance Rainfall ForecastUnited KingdomNIBelfastBelfast Harbour EntranceToday 5 Jul80%Sun 6 Jul50%Mon 7 Jul5%Tue 8 Jul10%Wed 9 Jul10%Thu 10 Jul10%Fri 11 Jul15%Belfast Harbour Entrance rainfall forecast issued today at 1:36 pm. Next forecast at approx. 3:36 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Castor Bay (Lurgan) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads