Snowdonia National Park Rainfall ForecastUnited KingdomWLGwyneddSnowdonia National ParkToday 3 Jul10%Fri 4 Jul90%Sat 5 Jul70%Sun 6 Jul55%Mon 7 Jul35%Tue 8 Jul10%Snowdonia National Park 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 Crug-y-Gorllwyn (Carmarthenshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads