Saint Margaret's Island Rainfall ForecastUnited KingdomWLPembrokeshireSaint Margaret's IslandToday 18 Sep15%Fri 19 Sep75%Sat 20 Sep85%Sun 21 Sep40%Mon 22 Sep5%Tue 23 Sep5%Saint Margaret's Island rainfall forecast issued today at 1:36 am. Next forecast at approx. 3:36 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