Castlerock Rainfall ForecastUnited KingdomNIColeraineCastlerockToday 31 May35%Mon 1 Jun85%Tue 2 Jun70%Wed 3 Jun60%Thu 4 Jun65%Fri 5 Jun55%Castlerock rainfall forecast issued yesterday at 7:36 pm. Next forecast at approx. 9:36 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