Glan-y-llyn Rainfall ForecastUnited KingdomWLRhondda Cynon TaffGlan-y-llynToday 29 Apr85%Tue 30 Apr90%Wed 1 May55%Thu 2 May50%Fri 3 May15%Sat 4 May15%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