Trelech a'r Betws Rainfall ForecastUnited KingdomWLCarmarthenshireTrelech a'r BetwsToday 18 Nov85%Wed 19 Nov40%Thu 20 Nov5%Fri 21 Nov70%Sat 22 Nov55%Sun 23 Nov15%Trelech a'r Betws rainfall forecast issued today at 12:36 am. Next forecast at approx. 2:36 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