Gurnos Rainfall ForecastUnited KingdomWLMerthyr TydfilGurnosToday 29 Aug60%Sat 30 Aug95%Sun 31 Aug60%Mon 1 Sep65%Tue 2 Sep85%Wed 3 Sep50%Thu 4 Sep35%Gurnos rainfall forecast issued today at 7:37 am. Next forecast at approx. 9:37 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