Helliar Holm Rainfall ForecastUnited KingdomOSOrkney IslandsHelliar HolmToday 17 Jul15%Fri 18 Jul55%Sat 19 Jul25%Sun 20 Jul25%Mon 21 Jul25%Tue 22 Jul15%Helliar Holm rainfall forecast issued today at 1:36 am. Next forecast at approx. 3:36 pm.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