Loch Grannoch Rainfall ForecastUnited KingdomDGDumfries and GallowayLoch GrannochToday 8 Apr90%Thu 9 Apr95%Fri 10 Apr75%Sat 11 Apr75%Sun 12 Apr60%Mon 13 Apr50%Tue 14 Apr20%Loch Grannoch rainfall forecast issued today at 1:36 pm. Next forecast at approx. 3:36 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Holehead (Stirling) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads