Cwmgwyn Rainfall ForecastUnited KingdomWLSwanseaCwmgwynToday 3 Mar10%Wed 4 MarNo RainThu 5 Mar50%Fri 6 Mar5%Sat 7 Mar5%Sun 8 Mar10%Cwmgwyn 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