Waterside Rainfall ForecastUnited KingdomNIDerryWatersideToday 15 Sep95%Tue 16 Sep95%Wed 17 Sep15%Thu 18 Sep15%Fri 19 Sep35%Sat 20 Sep40%Sun 21 Sep35%Waterside rainfall forecast issued today at 1:37 pm. Next forecast at approx. 3:37 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