Pen-y-Graig Rainfall ForecastUnited KingdomWLGwyneddPen-y-GraigToday 8 Sep30%Wed 9 Sep20%Thu 10 Sep90%Fri 11 Sep15%Sat 12 Sep85%Sun 13 Sep40%Mon 14 Sep75%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Pen-y-Graig rainfall forecast issued today at 7:10 pm. Next forecast at approx. 9:10 am. Rainfall Rainfall AccumulationCrug-y-Gorllwyn (Carmarthenshire) RadarGet WillyWeather+ to remove ads