Cumnor Rainfall ForecastUnited KingdomSEOxfordshireCumnorToday 11 May55%Tue 12 May10%Wed 13 May45%Thu 14 May60%Fri 15 May35%Sat 16 May15%Sun 17 May20%Cumnor rainfall forecast issued today at 7:40 am. Next forecast at approx. 9:40 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