St Marys (Scapa Flow) Rainfall ForecastUnited KingdomOSOrkney IslandsSt Marys (Scapa Flow)Today 29 Nov60%Sun 30 Nov90%Mon 1 Dec45%Tue 2 Dec5%Wed 3 Dec10%Thu 4 Dec15%Fri 5 Dec45%St Marys (Scapa Flow) rainfall forecast issued today at 6:36 pm. Next forecast at approx. 8:36 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