Merthyr Vale Rainfall ForecastUnited KingdomWLMerthyr TydfilMerthyr ValeToday 20 Aug20%Fri 21 Aug80%Sat 22 Aug10%Sun 23 AugNo RainMon 24 Aug40%Tue 25 Aug55%Wed 26 Aug60%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Merthyr Vale rainfall forecast issued today at 7:10 pm. Next forecast at approx. 9:10 am. Rainfall Rainfall AccumulationCobbacombe Cross (Devon) RadarGet WillyWeather+ to remove ads