Grobister Rainfall ForecastUnited KingdomOSOrkney IslandsGrobisterToday 18 Dec95%Fri 19 Dec70%Sat 20 Dec10%Sun 21 Dec20%Mon 22 Dec20%Tue 23 Dec10%Wed 24 Dec10%Grobister rainfall forecast issued today at 12:39 pm. Next forecast at approx. 2:39 am.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