Portmuck Bay Rainfall ForecastUnited KingdomNILarnePortmuck BayToday 9 Aug95%Mon 10 Aug10%Tue 11 Aug10%Wed 12 Aug35%Thu 13 Aug35%Fri 14 Aug15%Sat 15 Aug10%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Portmuck Bay rainfall forecast issued today at 1:08 pm. Next forecast at approx. 3:08 am. Rainfall Rainfall AccumulationCastor Bay (Lurgan) RadarGet WillyWeather+ to remove ads