Trawsfynydd Rainfall ForecastUnited KingdomWLGwyneddTrawsfynyddToday 27 Aug90%Thu 28 Aug90%Fri 29 Aug35%Sat 30 Aug80%Sun 31 Aug45%Mon 1 Sep45%Trawsfynydd 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 Clee Hill (Shropshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads