Porthgain Rainfall ForecastUnited KingdomWLPembrokeshirePorthgainToday 23 Mar15%Tue 24 Mar85%Wed 25 Mar35%Thu 26 Mar55%Fri 27 Mar55%Sat 28 Mar10%Porthgain rainfall forecast issued today at 12:36 am. Next forecast at approx. 2:36 pm.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