Onllwyn Rainfall ForecastUnited KingdomWLNeath Port TalbotOnllwynToday 4 Feb85%Thu 5 Feb90%Fri 6 Feb60%Sat 7 Feb40%Sun 8 Feb40%Mon 9 Feb75%Tue 10 Feb80%Onllwyn rainfall forecast issued today 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