Old Colwyn Rainfall ForecastUnited KingdomWLConwyOld ColwynToday 25 Mar65%Thu 26 Mar50%Fri 27 Mar55%Sat 28 Mar35%Sun 29 Mar70%Mon 30 Mar15%Old Colwyn rainfall forecast issued today at 12:36 am. Next forecast at approx. 2:36 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