Johnstone Rainfall ForecastUnited KingdomSTRenfrewshireJohnstoneToday 7 Apr15%Wed 8 Apr85%Thu 9 Apr85%Fri 10 Apr85%Sat 11 Apr50%Sun 12 Apr35%Johnstone rainfall forecast issued yesterday 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 Holehead (Stirling) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads