Castle Sween Rainfall ForecastUnited KingdomSTArgyll and ButeCastle SweenToday 3 Oct100%Sat 4 Oct75%Sun 5 Oct85%Mon 6 Oct80%Tue 7 Oct55%Wed 8 Oct45%Castle Sween rainfall forecast issued today at 1:35 am. Next forecast at approx. 3:35 pm.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