Grafham Water Rainfall ForecastUnited KingdomEECambridgeshireGrafham WaterToday 29 Jun10%Mon 30 Jun55%Tue 1 Jul15%Wed 2 Jul50%Thu 3 Jul15%Fri 4 Jul5%Sat 5 Jul15%Grafham Water rainfall forecast issued today at 1:36 pm. Next forecast at approx. 3:36 am.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