Tonna Rainfall ForecastUnited KingdomWLNeath Port TalbotTonnaToday 5 Sep50%Sat 6 Sep15%Sun 7 Sep75%Mon 8 Sep60%Tue 9 Sep65%Wed 10 Sep45%Tonna 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