Pentwyn Rainfall ForecastUnited KingdomWLCaerphillyPentwynToday 1 Jun100%Tue 2 Jun75%Wed 3 Jun95%Thu 4 Jun80%Fri 5 Jun45%Sat 6 Jun85%Sun 7 Jun10%Pentwyn rainfall forecast issued today at 7:36 pm. Next forecast at approx. 9:36 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