Groomsport Rainfall ForecastUnited KingdomNINorth DownGroomsportToday 7 Jan80%Thu 8 Jan40%Fri 9 Jan35%Sat 10 Jan45%Sun 11 Jan80%Mon 12 Jan50%Tue 13 Jan15%Groomsport rainfall forecast issued today at 6:36 pm. Next forecast at approx. 8:36 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