Southwick Rainfall ForecastUnited KingdomSEHampshireSouthwickToday 10 Dec5%Thu 11 Dec60%Fri 12 Dec10%Sat 13 Dec15%Sun 14 Dec75%Mon 15 Dec60%Tue 16 Dec15%Southwick rainfall forecast issued today at 6:36 pm. Next forecast at approx. 8:36 am.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