Portrush Rainfall ForecastUnited KingdomNIColerainePortrushToday 30 Jul15%Fri 31 Jul85%Sat 1 Aug10%Sun 2 Aug10%Mon 3 Aug25%Tue 4 Aug20%Wed 5 Aug35%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Portrush 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