Port Dinorwic Rainfall ForecastUnited KingdomWLGwyneddPort DinorwicToday 29 Sep15%Tue 30 Sep55%Wed 1 Oct55%Thu 2 Oct75%Fri 3 Oct75%Sat 4 Oct50%Port Dinorwic rainfall forecast issued today at 1:35 am. Next forecast at approx. 3:35 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