Portlandoo Harbour Rainfall ForecastUnited KingdomNIColerainePortlandoo HarbourToday 18 Jan50%Mon 19 Jan55%Tue 20 Jan50%Wed 21 Jan50%Thu 22 Jan45%Fri 23 Jan20%Portlandoo Harbour rainfall forecast issued today at 12:36 am. Next forecast at approx. 2:36 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