Southampton Rainfall ForecastUnited KingdomSEHampshireSouthamptonToday 12 JulNo RainSun 13 Jul5%Mon 14 Jul35%Tue 15 Jul35%Wed 16 Jul40%Thu 17 Jul10%Southampton rainfall forecast issued today at 7:36 am. Next forecast at approx. 9:36 pm.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