Alton Rainfall ForecastUnited KingdomSEHampshireAltonToday 7 Sep60%Mon 8 Sep40%Tue 9 Sep20%Wed 10 Sep55%Thu 11 Sep40%Fri 12 Sep40%Alton rainfall forecast issued today at 1:36 am. Next forecast at approx. 3:36 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Dean Hill (Wiltshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads