Merthyr Mawr Rainfall ForecastUnited KingdomWLBridgendMerthyr MawrToday 6 Oct80%Mon 7 Oct80%Tue 8 Oct60%Wed 9 Oct15%Thu 10 Oct35%Fri 11 Oct10%Merthyr Mawr rainfall forecast issued today at 1:37 am. Next forecast at approx. 3:37 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