Guns Island Rainfall ForecastUnited KingdomNIDownGuns IslandToday 19 Aug80%Thu 20 Aug50%Fri 21 Aug25%Sat 22 Aug5%Sun 23 Aug10%Mon 24 Aug5%Tue 25 Aug45%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Guns Island 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