Merthyr Tydfil Rainfall ForecastUnited KingdomWLMerthyr TydfilMerthyr TydfilToday 30 Oct95%Fri 31 Oct80%Sat 1 Nov65%Sun 2 Nov80%Mon 3 Nov80%Tue 4 Nov80%Merthyr Tydfil rainfall forecast issued today at 12:36 am. Next forecast at approx. 2:36 pm.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