Ystradffin Rainfall ForecastUnited KingdomWLCarmarthenshireYstradffinToday 19 Jan15%Tue 20 Jan50%Wed 21 Jan70%Thu 22 Jan55%Fri 23 Jan80%Sat 24 Jan55%Ystradffin rainfall forecast issued yesterday at 6:36 pm. Next forecast at approx. 8:36 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