Portrush Rainfall ForecastUnited KingdomNIColerainePortrushToday 14 Jun5%Mon 15 Jun55%Tue 16 Jun35%Wed 17 Jun40%Thu 18 Jun55%Fri 19 Jun40%Sat 20 Jun35%Portrush 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