Upperton Rainfall ForecastUnited KingdomSEWest SussexUppertonToday 14 Apr85%Wed 15 Apr95%Thu 16 Apr40%Fri 17 Apr10%Sat 18 Apr10%Sun 19 Apr10%Mon 20 Apr5%Upperton 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 Dean Hill (Wiltshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads