Bwlchyllyn Rainfall ForecastUnited KingdomWLGwyneddBwlchyllynToday 29 Mar100%Mon 30 Mar55%Tue 31 Mar20%Wed 1 Apr50%Thu 2 Apr85%Fri 3 Apr75%Sat 4 Apr60%Bwlchyllyn rainfall forecast issued today at 7:36 am. Next forecast at approx. 9:36 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