Snowdonia National Park Rainfall ForecastUnited KingdomWLGwyneddSnowdonia National ParkToday 7 Nov15%Sun 8 Nov15%Mon 9 Nov15%Tue 10 Nov55%Wed 11 Nov20%Thu 12 Nov10%Fri 13 Nov5%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Snowdonia National Park rainfall forecast issued today at 12:10 pm. Next forecast at approx. 2:10 am. Rainfall Rainfall AccumulationCrug-y-Gorllwyn (Carmarthenshire) RadarGet WillyWeather+ to remove ads