Pen-y-Graig Rainfall ForecastUnited KingdomWLGwyneddPen-y-GraigToday 19 May95%Wed 20 May90%Thu 21 May45%Fri 22 May20%Sat 23 May15%Sun 24 May5%Mon 25 May5%Pen-y-Graig rainfall forecast issued today at 1:38 pm. Next forecast at approx. 3:38 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Crug-y-Gorllwyn (Carmarthenshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads