Walthamstow Reservoirs Rainfall ForecastUnited KingdomSEGreater LondonWalthamstow ReservoirsToday 14 Dec10%Mon 15 Dec20%Tue 16 Dec20%Wed 17 Dec50%Thu 18 Dec70%Fri 19 Dec5%Walthamstow Reservoirs rainfall forecast issued today at 12:36 am. Next forecast at approx. 2:36 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