Brighton Rainfall ForecastUnited KingdomSEEast SussexBrightonToday 15 Sep60%Tue 16 Sep85%Wed 17 Sep55%Thu 18 Sep20%Fri 19 Sep30%Sat 20 Sep10%Brighton 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 Thurnham (Kent) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads