Groomsport Rainfall ForecastUnited KingdomNINorth DownGroomsportToday 22 Jul10%Thu 23 Jul20%Fri 24 Jul10%Sat 25 Jul20%Sun 26 Jul15%Mon 27 Jul30%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Groomsport rainfall forecast issued today at 2:07 am. Next forecast at approx. . Rainfall Rainfall AccumulationCastor Bay (Lurgan) RadarGet WillyWeather+ to remove ads