Tonmawr Rainfall ForecastUnited KingdomWLNeath Port TalbotTonmawrToday 30 Jun75%Wed 1 Jul90%Thu 2 Jul85%Fri 3 Jul15%Sat 4 Jul40%Sun 5 Jul20%Mon 6 Jul5%Tonmawr rainfall forecast issued today at 7:40 am. Next forecast at approx. 9:40 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Rainfall Rainfall AccumulationCrug-y-Gorllwyn (Carmarthenshire) RadarGet WillyWeather+ to remove ads