Pen-y-bont (Trelech) Rainfall ForecastUnited KingdomWLCarmarthenshirePen-y-bont (Trelech)Today 3 Oct100%Sat 4 Oct50%Sun 5 Oct35%Mon 6 Oct10%Tue 7 Oct50%Wed 8 Oct50%Thu 9 Oct5%Pen-y-bont (Trelech) rainfall forecast issued today at 7:38 pm. Next forecast at approx. 9:38 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