Southwick Rainfall ForecastUnited KingdomEMNorthamptonshireSouthwickToday 12 May55%Wed 13 May90%Thu 14 May45%Fri 15 May35%Sat 16 May10%Sun 17 May35%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 Ingham (Lincolnshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads