South Marston Rainfall ForecastUnited KingdomSWWiltshireSouth MarstonToday 12 May55%Mon 13 May80%Tue 14 May90%Wed 15 May30%Thu 16 May40%Fri 17 May35%South Marston rainfall forecast issued today at 1:37 am. Next forecast at approx. 3:37 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 an account to remove ads