Waterside Rainfall ForecastUnited KingdomNIDerryWatersideToday 4 Sep75%Fri 5 Sep10%Sat 6 Sep55%Sun 7 Sep75%Mon 8 Sep40%Tue 9 Sep40%Waterside rainfall forecast issued today at 1:36 am. Next forecast at approx. 3:36 pm.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