Pen-y-sarn Rainfall ForecastUnited KingdomWLIsle of AngleseyPen-y-sarnToday 17 Jul85%Fri 18 Jul50%Sat 19 Jul20%Sun 20 Jul60%Mon 21 Jul60%Tue 22 Jul15%Wed 23 Jul15%Pen-y-sarn rainfall forecast issued today at 7:37 pm. Next forecast at approx. 9:37 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Dublin RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads