Castell Rainfall ForecastUnited KingdomWLConwyCastellToday 24 May90%Sun 25 May40%Mon 26 May85%Tue 27 May85%Wed 28 May40%Thu 29 May50%Castell rainfall forecast issued today at 1:37 am. Next forecast at approx. 3:37 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Hameldon Hill (Lancashire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads