Dyffryn Castell Rainfall ForecastUnited KingdomWLCeredigionDyffryn CastellToday 10 Mar100%Wed 11 Mar80%Thu 12 Mar95%Fri 13 Mar70%Sat 14 Mar15%Sun 15 Mar65%Mon 16 Mar50%Dyffryn Castell rainfall forecast issued today at 6:35 am. Next forecast at approx. 8:35 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