Southampton Rainfall ForecastUnited KingdomSEHampshireSouthamptonToday 19 Oct95%Tue 20 Oct95%Wed 21 Oct50%Thu 22 Oct70%Fri 23 Oct65%Sat 24 Oct80%Sun 25 Oct15%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Southampton rainfall forecast issued today at 1:09 pm. Next forecast at approx. 3:09 am. Rainfall Rainfall AccumulationDean Hill (Wiltshire) RadarGet WillyWeather+ to remove ads