Ystradffin Rainfall ForecastUnited KingdomWLCarmarthenshireYstradffinToday 17 Oct10%Sat 18 Oct85%Sun 19 Oct90%Mon 20 Oct85%Tue 21 Oct75%Wed 22 Oct75%Ystradffin rainfall forecast issued yesterday 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