Southampton Rainfall ForecastUnited KingdomSEHampshireSouthamptonToday 25 Jan50%Sun 26 Jan100%Mon 27 Jan80%Tue 28 Jan35%Wed 29 Jan55%Thu 30 Jan5%Fri 31 Jan5%Southampton rainfall forecast issued today at 6:38 pm. Next forecast at approx. 8:38 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 WillyWeather+ to remove ads