Llanystumdwy Rainfall ForecastUnited KingdomWLGwyneddLlanystumdwyToday 18 Oct55%Mon 19 Oct45%Tue 20 Oct80%Wed 21 Oct85%Thu 22 Oct85%Fri 23 Oct80%Sat 24 Oct80%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Llanystumdwy rainfall forecast issued today at 7:08 am. Next forecast at approx. 9:08 pm. Rainfall Rainfall AccumulationCrug-y-Gorllwyn (Carmarthenshire) RadarGet WillyWeather+ to remove ads