Thorn Island Rainfall ForecastUnited KingdomWLPembrokeshireThorn IslandToday 8 May5%Sat 9 May25%Sun 10 May5%Mon 11 May10%Tue 12 May5%Wed 13 May40%Thorn Island 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