Waterside Rainfall ForecastUnited KingdomNIDerryWatersideToday 11 Aug10%Wed 12 Aug50%Thu 13 Aug65%Fri 14 Aug35%Sat 15 Aug10%Sun 16 Aug75%Mon 17 Aug35%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Waterside 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