Tonmawr Rainfall ForecastUnited KingdomWLNeath Port TalbotTonmawrToday 10 Dec10%Thu 11 Dec90%Fri 12 Dec10%Sat 13 Dec85%Sun 14 Dec85%Mon 15 Dec85%Tue 16 Dec45%Tonmawr 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 Crug-y-Gorllwyn (Carmarthenshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads