Clay Hill Rainfall ForecastUnited KingdomSEGreater LondonClay HillToday 15 May50%Sat 16 May55%Sun 17 May45%Mon 18 May55%Tue 19 May60%Wed 20 May10%Clay Hill rainfall forecast issued today at 7:39 am. Next forecast at approx. 9:39 pm.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