Groomsport Rainfall ForecastUnited KingdomNINorth DownGroomsportToday 26 Aug80%Thu 27 Aug45%Fri 28 Aug45%Sat 29 Aug40%Sun 30 Aug60%Mon 31 Aug35%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Groomsport rainfall forecast issued today at 7:08 am. Next forecast at approx. 9:08 pm. Rainfall Rainfall AccumulationCastor Bay (Lurgan) RadarGet WillyWeather+ to remove ads