Old St Mellons Rainfall ForecastUnited KingdomWLCardiffOld St MellonsToday 23 Oct90%Sat 24 Oct100%Sun 25 Oct65%Mon 26 Oct95%Tue 27 Oct65%Wed 28 Oct10%Thu 29 Oct5%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Old St Mellons rainfall forecast issued today at 7:13 am. Next forecast at approx. 9:13 pm. Rainfall Rainfall AccumulationCobbacombe Cross (Devon) RadarGet WillyWeather+ to remove ads