Porth Twyn-mawr Rainfall ForecastUnited KingdomWLIsle of AngleseyPorth Twyn-mawrToday 28 Mar40%Sat 29 Mar80%Sun 30 Mar10%Mon 31 Mar10%Tue 1 AprNo RainWed 2 AprNo RainThu 3 AprNo RainPorth Twyn-mawr rainfall forecast issued today at 6:38 pm. Next forecast at approx. 8:38 am.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