Castlerock Rainfall ForecastUnited KingdomNIColeraineCastlerockToday 2 May5%Fri 3 May40%Sat 4 May50%Sun 5 May15%Mon 6 May15%Tue 7 May15%Castlerock rainfall forecast issued today at 7:38 am. Next forecast at approx. 9:38 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 an account to remove ads