River Blackwater - Osea Island Rainfall ForecastUnited KingdomEEEssexRiver Blackwater - Osea IslandToday 5 Jul10%Sun 6 Jul70%Mon 7 Jul80%Tue 8 JulNo RainWed 9 JulNo RainThu 10 JulNo RainFri 11 JulNo RainRiver Blackwater - Osea Island 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