Sydenham Rainfall ForecastUnited KingdomNIBelfastSydenhamToday 10 Aug5%Tue 11 Aug5%Wed 12 Aug50%Thu 13 Aug40%Fri 14 Aug15%Sat 15 Aug10%Sun 16 Aug50%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Sydenham rainfall forecast issued today at 7:08 pm. Next forecast at approx. 9:08 am. Rainfall Rainfall AccumulationCastor Bay (Lurgan) RadarGet WillyWeather+ to remove ads