Grim Ness Rainfall ForecastUnited KingdomOSOrkney IslandsGrim NessToday 5 Mar10%Sat 6 Mar10%Sun 7 Mar75%Mon 8 Mar15%Tue 9 Mar15%Grim Ness rainfall forecast issued today at 1:31 am. Next forecast at approx. 3:31 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