Southampton Rainfall ForecastUnited KingdomSEHampshireSouthamptonToday 13 Feb55%Sat 14 Feb60%Sun 15 Feb50%Mon 16 Feb10%Tue 17 Feb40%Wed 18 Feb40%Southampton rainfall forecast issued today at 12:36 am. Next forecast at approx. 2:36 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