St Marys (Scapa Flow) Rainfall ForecastUnited KingdomOSOrkney IslandsSt Marys (Scapa Flow)Today 13 Dec90%Sun 14 Dec50%Mon 15 Dec15%Tue 16 Dec50%Wed 17 Dec80%Thu 18 Dec10%St Marys (Scapa Flow) rainfall forecast issued yesterday at 6:37 pm. Next forecast at approx. 8:37 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