Alton Water Rainfall ForecastUnited KingdomEESuffolkAlton WaterToday 11 Apr30%Sun 12 Apr20%Mon 13 Apr50%Tue 14 Apr5%Wed 15 Apr10%Thu 16 Apr5%Fri 17 Apr10%Alton Water rainfall forecast issued today at 1:36 pm. Next forecast at approx. 3:36 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Thurnham (Kent) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads