Castlerock Rainfall ForecastUnited KingdomNIColeraineCastlerockToday 11 Jan90%Mon 12 Jan60%Tue 13 Jan15%Wed 14 Jan50%Thu 15 Jan10%Fri 16 Jan50%Castlerock rainfall forecast issued today at 6:35 am. Next forecast at approx. 8:35 pm.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