Portmuck Bay Rainfall ForecastUnited KingdomNILarnePortmuck BayToday 10 Jun10%Wed 11 Jun45%Thu 12 Jun85%Fri 13 Jun50%Sat 14 Jun45%Sun 15 Jun35%Portmuck Bay rainfall forecast issued today at 7:37 am. Next forecast at approx. 9:37 pm.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