Garndiffaith Rainfall ForecastUnited KingdomWLTorfaenGarndiffaithToday 16 Apr5%Sat 17 AprNo RainSun 18 Apr5%Mon 19 Apr10%Tue 20 Apr15%Garndiffaith rainfall forecast issued today at 5:31 pm. Next forecast at approx. 7:31 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time National RadarNational SatelliteNational SynopticGet an account to remove ads