Glan-y-llyn Rainfall ForecastUnited KingdomWLRhondda Cynon TaffGlan-y-llynToday 5 May55%Mon 6 May65%Tue 7 May30%Wed 8 May5%Thu 9 May5%Fri 10 May5%Glan-y-llyn rainfall forecast issued today at 1:37 am. Next forecast at approx. 3:37 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 an account to remove ads