Groomsport Rainfall ForecastUnited KingdomNINorth DownGroomsportToday 7 Nov55%Sat 8 Nov80%Sun 9 Nov65%Mon 10 Nov35%Tue 11 Nov75%Wed 12 Nov50%Groomsport rainfall forecast issued today at 6:35 am. Next forecast at approx. 8:35 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