Sydenham Rainfall ForecastUnited KingdomNIBelfastSydenhamToday 23 Mar85%Tue 24 Mar85%Wed 25 Mar45%Thu 26 Mar55%Fri 27 Mar15%Sat 28 Mar30%Sun 29 Mar50%Sydenham rainfall forecast issued today at 6:36 am. Next forecast at approx. 8:36 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