Grim Ness Rainfall ForecastUnited KingdomOSOrkney IslandsGrim NessToday 31 Jul50%Sun 1 Aug10%Mon 2 Aug15%Tue 3 Aug5%Wed 4 Aug15%Thu 5 Aug15%Fri 6 Aug40%Grim Ness rainfall forecast issued today at 3:17 am. Next forecast at approx. 5:17 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time National RadarNational SatelliteNational SynopticGet an account to remove ads