Grobister Rainfall ForecastUnited KingdomOSOrkney IslandsGrobisterToday 7 May95%Fri 8 May35%Sat 9 May40%Sun 10 May80%Mon 11 May20%Tue 12 May50%Wed 13 May50%Grobister 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 Hill of Dudwick (Aberdeenshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads