Onllwyn Rainfall ForecastUnited KingdomWLNeath Port TalbotOnllwynToday 2 May85%Sun 3 May85%Mon 4 May35%Tue 5 May15%Wed 6 May15%Thu 7 May10%Onllwyn rainfall forecast issued today at 1:36 am. Next forecast at approx. 3:36 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