Treffynnon Rainfall ForecastUnited KingdomWLPembrokeshireTreffynnonToday 13 Nov60%Fri 14 Nov95%Sat 15 Nov5%Sun 16 Nov10%Mon 17 Nov20%Tue 18 Nov55%Wed 19 Nov60%Treffynnon rainfall forecast issued today at 6:39 pm. Next forecast at approx. 8:39 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