Johnstone Rainfall ForecastUnited KingdomSTRenfrewshireJohnstoneToday 5 Nov95%Thu 6 Nov15%Fri 7 Nov30%Sat 8 Nov40%Sun 9 Nov60%Mon 10 Nov45%Tue 11 Nov15%Johnstone rainfall forecast issued today at 6:36 am. Next forecast at approx. 8:36 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