Tonmawr Rainfall ForecastUnited KingdomWLNeath Port TalbotTonmawrToday 18 Aug30%Tue 19 Aug5%Wed 20 Aug10%Thu 21 AugNo RainFri 22 Aug5%Sat 23 Aug15%Sun 24 Aug10%Tonmawr rainfall forecast issued today at 7:36 am. Next forecast at approx. 9:36 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Crug-y-Gorllwyn (Carmarthenshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads