Olchfa Rainfall ForecastUnited KingdomWLSwanseaOlchfaToday 15 AugNo RainSat 16 AugNo RainSun 17 Aug5%Mon 18 Aug10%Tue 19 Aug5%Wed 20 Aug5%Thu 21 Aug5%Olchfa rainfall forecast issued today at 7:37 pm. Next forecast at approx. 9:37 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