Chapmans Rock Rainfall ForecastUnited KingdomNILarneChapmans RockToday 9 Sep50%Thu 10 Sep85%Fri 11 Sep60%Sat 12 Sep60%Sun 13 Sep10%Mon 14 Sep45%Tue 15 Sep30%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Chapmans Rock rainfall forecast issued today at 7:08 pm. Next forecast at approx. 9:08 am. Rainfall Rainfall AccumulationCastor Bay (Lurgan) RadarGet WillyWeather+ to remove ads