Southampton Rainfall ForecastUnited KingdomSEHampshireSouthamptonToday 25 Apr90%Fri 26 Apr55%Sat 27 Apr80%Sun 28 Apr55%Mon 29 Apr5%Tue 30 Apr20%Wed 1 May45%Southampton rainfall forecast issued today at 7:38 pm. Next forecast at approx. 9:38 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 an account to remove ads