Southwick Rainfall ForecastUnited KingdomSEHampshireSouthwickToday 17 Sep95%Fri 18 Sep10%Sat 19 Sep20%Sun 20 Sep10%Mon 21 Sep15%Tue 22 Sep15%Wed 23 Sep5%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Southwick rainfall forecast issued today at 7:08 am. Next forecast at approx. 9:08 pm. Rainfall Rainfall AccumulationDean Hill (Wiltshire) RadarGet WillyWeather+ to remove ads