Southampton Rainfall ForecastUnited KingdomSEHampshireSouthamptonToday 16 Jan70%Sun 17 Jan5%Mon 18 Jan15%Tue 19 Jan60%Wed 20 Jan95%Southampton rainfall forecast issued today at 2:31 pm. Next forecast at approx. 4:31 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time National RadarNational SatelliteNational SynopticGet an account to remove ads