Castlehead Rainfall ForecastUnited KingdomSTRenfrewshireCastleheadToday 13 Jul15%Mon 14 Jul85%Tue 15 Jul45%Wed 16 Jul5%Thu 17 Jul50%Fri 18 Jul55%Sat 19 Jul40%Castlehead rainfall forecast issued today at 7:36 am. Next forecast at approx. 9:36 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