Merthyr Vale Rainfall ForecastUnited KingdomWLMerthyr TydfilMerthyr ValeToday 13 Dec5%Sun 14 Dec80%Mon 15 Dec80%Tue 16 Dec20%Wed 17 Dec80%Thu 18 Dec80%Merthyr Vale rainfall forecast issued today at 6:36 am. Next forecast at approx. 8:36 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Cobbacombe Cross (Devon) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads