LLwyn-on Rainfall ForecastUnited KingdomWLMerthyr TydfilLLwyn-onToday 30 Jun10%Tue 1 Jul5%Wed 2 Jul5%Thu 3 Jul5%Fri 4 Jul10%Sat 5 Jul80%Sun 6 Jul50%LLwyn-on rainfall forecast issued today at 7:37 pm. Next forecast at approx. 9:37 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