Glan-y-llyn Rainfall ForecastUnited KingdomWLRhondda Cynon TaffGlan-y-llynToday 10 Jan90%Sun 11 Jan90%Mon 12 Jan60%Tue 13 Jan35%Wed 14 Jan60%Thu 15 Jan75%Glan-y-llyn rainfall forecast issued today at 6:36 am. Next forecast at approx. 8:36 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Cobbacombe Cross (Devon) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads