LLwyn-on Rainfall ForecastUnited KingdomWLMerthyr TydfilLLwyn-onToday 25 Oct95%Mon 26 Oct100%Tue 27 Oct70%Wed 28 Oct80%Thu 29 Oct15%Fri 30 Oct20%Sat 31 Oct15%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time LLwyn-on rainfall forecast issued today at 6:11 pm. Next forecast at approx. 8:11 am. Rainfall Rainfall AccumulationCrug-y-Gorllwyn (Carmarthenshire) RadarGet WillyWeather+ to remove ads