Llanberis Rainfall ForecastUnited KingdomWLGwyneddLlanberisToday 3 Mar35%Wed 4 Mar5%Thu 5 Mar90%Fri 6 Mar5%Sat 7 Mar15%Sun 8 Mar35%Mon 9 Mar15%Llanberis rainfall forecast issued today at 6:36 am. Next forecast at approx. 8:36 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