Grenham Bay Rainfall ForecastUnited KingdomSEKentGrenham BayToday 4 Jun10%Fri 5 Jun50%Sat 6 Jun90%Sun 7 Jun5%Mon 8 Jun50%Tue 9 Jun25%Wed 10 Jun10%Grenham Bay rainfall forecast issued today at 7:36 pm. Next forecast at approx. 9:36 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