Trelech a'r Betws Rainfall ForecastUnited KingdomWLCarmarthenshireTrelech a'r BetwsToday 30 Jun10%Tue 1 Jul10%Wed 2 Jul5%Thu 3 Jul15%Fri 4 Jul45%Sat 5 Jul75%Sun 6 Jul50%Trelech a'r Betws rainfall forecast issued today at 7:38 am. Next forecast at approx. 9:38 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