Merthyr Mawr Rainfall ForecastUnited KingdomWLBridgendMerthyr MawrToday 13 Jun5%Sun 14 Jun15%Mon 15 Jun15%Tue 16 Jun85%Wed 17 Jun50%Thu 18 Jun50%Fri 19 Jun30%Merthyr Mawr rainfall forecast issued today at 1:36 pm. Next forecast at approx. 3:36 am.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