LLwyn-on Rainfall ForecastUnited KingdomWLMerthyr TydfilLLwyn-onToday 2 May85%Fri 3 May55%Sat 4 May10%Sun 5 May25%Mon 6 May35%Tue 7 May15%LLwyn-on rainfall forecast issued today at 7:38 am. Next forecast at approx. 9:38 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 an account to remove ads