Grenham Bay Rainfall ForecastUnited KingdomSEKentGrenham BayToday 3 Mar20%Wed 4 Mar20%Thu 5 Mar5%Fri 6 Mar10%Sat 7 Mar15%Sun 8 Mar5%Mon 9 Mar5%Grenham Bay rainfall forecast issued today at 12:35 pm. Next forecast at approx. 2:35 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Thurnham (Kent) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads