Merrion Rainfall ForecastUnited KingdomWLPembrokeshireMerrionToday 13 May85%Thu 14 May80%Fri 15 May5%Sat 16 May55%Sun 17 May40%Mon 18 May85%Tue 19 May85%Merrion rainfall forecast issued today at 7:39 pm. Next forecast at approx. 9:39 am.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