Llanrumney Rainfall ForecastUnited KingdomWLCardiffLlanrumneyToday 5 Sep45%Sun 6 Sep50%Mon 7 Sep65%Tue 8 Sep15%Wed 9 Sep10%Thu 10 Sep10%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Llanrumney rainfall forecast issued yesterday at 7:11 pm. Next forecast at approx. 9:11 am. Rainfall Rainfall AccumulationCobbacombe Cross (Devon) RadarGet WillyWeather+ to remove ads