Gurnos Rainfall ForecastUnited KingdomWLMerthyr TydfilGurnosToday 27 Aug75%Fri 28 Aug85%Sat 29 Aug90%Sun 30 Aug65%Mon 31 Aug40%Tue 1 Sep45%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Gurnos rainfall forecast issued yesterday at 7:11 pm. Next forecast at approx. 9:11 am. Rainfall Rainfall AccumulationCrug-y-Gorllwyn (Carmarthenshire) RadarGet WillyWeather+ to remove ads