Merthyr Tydfil Rainfall ForecastUnited KingdomWLMerthyr TydfilMerthyr TydfilToday 11 Nov55%Thu 12 NovNo RainFri 13 Nov5%Sat 14 Nov10%Sun 15 Nov70%Mon 16 Nov85%Tue 17 Nov65%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Merthyr Tydfil rainfall forecast issued today at 6:08 am. Next forecast at approx. 8:08 pm. Rainfall Rainfall AccumulationCrug-y-Gorllwyn (Carmarthenshire) RadarGet WillyWeather+ to remove ads