Knaphill Rainfall ForecastUnited KingdomSESurreyKnaphillToday 16 Jan80%Sat 17 Jan55%Sun 18 Jan15%Mon 19 Jan40%Tue 20 Jan45%Wed 21 Jan40%Thu 22 Jan50%Knaphill 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