Trevethin Rainfall ForecastUnited KingdomWLTorfaenTrevethinToday 22 AprNo RainFri 23 AprNo RainSat 24 AprNo RainSun 25 Apr5%Mon 26 Apr5%Trevethin rainfall forecast issued today at 7:31 pm. Next forecast at approx. 9:31 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time National RadarNational SatelliteNational SynopticGet an account to remove ads