Greystone Rainfall ForecastUnited KingdomNIDungannonGreystoneToday 18 May10%Sun 19 May5%Mon 20 May15%Tue 21 May45%Wed 22 May35%Thu 23 May10%Greystone rainfall forecast issued today at 1:37 am. Next forecast at approx. 3:37 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