River Thames - HMS Belfast Rainfall ForecastUnited KingdomSEGreater LondonRiver Thames - HMS BelfastToday 4 Dec55%Fri 5 Dec90%Sat 6 Dec20%Sun 7 Dec20%Mon 8 Dec75%Tue 9 Dec20%River Thames - HMS Belfast rainfall forecast issued today at 12:35 am. Next forecast at approx. 2:35 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Chenies (Hertfordshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads