Southampton Rainfall ForecastUnited KingdomSEHampshireSouthamptonToday 28 Jun10%Sun 29 Jun5%Mon 30 JunNo RainTue 1 Jul5%Wed 2 Jul35%Thu 3 Jul40%Fri 4 Jul10%Southampton rainfall forecast issued today at 7:36 pm. Next forecast at approx. 9:36 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