Groeslon Rainfall ForecastUnited KingdomWLGwyneddGroeslonToday 19 Jul10%Mon 20 Jul15%Tue 21 Jul15%Wed 22 Jul15%Thu 23 Jul5%Fri 24 Jul5%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Groeslon rainfall forecast issued today at 1:26 am. Next forecast at approx. . Rainfall Rainfall AccumulationCrug-y-Gorllwyn (Carmarthenshire) RadarGet WillyWeather+ to remove ads