Pen-llyn Rainfall ForecastUnited KingdomWLIsle of AngleseyPen-llynToday 21 Sep45%Sun 22 Sep55%Mon 23 Sep15%Tue 24 Sep20%Wed 25 Sep50%Thu 26 Sep40%Pen-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 Dublin RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads