Merrow Rainfall ForecastUnited KingdomSESurreyMerrowToday 27 Mar50%Sat 28 Mar55%Sun 29 Mar55%Mon 30 Mar5%Tue 31 Mar15%Wed 1 Apr15%Thu 2 Apr45%Merrow rainfall forecast issued today at 6:37 pm. Next forecast at approx. 8:37 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Chenies (Hertfordshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads