LLwyn-on Rainfall ForecastUnited KingdomWLMerthyr TydfilLLwyn-onToday 3 Jun95%Thu 4 Jun95%Fri 5 Jun85%Sat 6 Jun95%Sun 7 Jun80%Mon 8 Jun85%Tue 9 Jun50%LLwyn-on rainfall forecast issued today at 7:35 pm. Next forecast at approx. 9:35 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