St Marys (Scapa Flow) Rainfall ForecastUnited KingdomOSOrkney IslandsSt Marys (Scapa Flow)Today 13 Sep70%Sun 14 Sep95%Mon 15 Sep85%Tue 16 Sep30%Wed 17 Sep75%Thu 18 Sep45%Fri 19 Sep40%St Marys (Scapa Flow) rainfall forecast issued today at 7:36 pm. Next forecast at approx. 9:36 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