Bontddu Rainfall ForecastUnited KingdomWLGwyneddBontdduToday 15 May50%Sat 16 May90%Sun 17 May70%Mon 18 May95%Tue 19 May90%Wed 20 May60%Thu 21 May55%Bontddu 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