River Blackwater - Northey Island Rainfall ForecastUnited KingdomEEEssexRiver Blackwater - Northey IslandToday 17 Jul45%Fri 18 Jul80%Sat 19 Jul85%Sun 20 Jul65%Mon 21 Jul65%Tue 22 Jul40%Wed 23 Jul40%River Blackwater - Northey Island rainfall forecast issued today at 7:37 pm. Next forecast at approx. 9:37 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