Southwick Rainfall ForecastUnited KingdomSWWiltshireSouthwickToday 9 Sep85%Wed 10 Sep60%Thu 11 Sep60%Fri 12 Sep65%Sat 13 Sep60%Sun 14 Sep25%Southwick rainfall forecast issued today at 1:36 am. Next forecast at approx. 3:36 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