Castlewellan Rainfall ForecastUnited KingdomNIDownCastlewellanToday 28 Mar40%Sun 29 Mar80%Mon 30 Mar15%Tue 31 Mar20%Wed 1 Apr40%Thu 2 Apr80%Fri 3 Apr50%Castlewellan rainfall forecast issued today at 6:38 pm. Next forecast at approx. 9:38 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Castor Bay (Lurgan) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads