River Mersey Entrance Rainfall ForecastUnited KingdomNWMerseysideRiver Mersey EntranceToday 17 Oct15%Mon 18 Oct20%Tue 19 Oct65%Wed 20 Oct55%Thu 21 Oct40%Fri 22 Oct20%River Mersey Entrance rainfall forecast issued today at 7:42 am. Next forecast at approx. 9:42 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time National RadarNational SatelliteNational SynopticGet an account to remove ads