Johnstone Wind ForecastUnited KingdomSTRenfrewshireJohnstone1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Johnstone wind forecast issued today at 7:11 pm. Next forecast at approx. 7:11 am.Johnstone Wind Statistics July WindGlasgow/bishopton (7km)2025JuneJulyStrongest 4 July, 202520.1mph SSWAverage July6.7mphStrongest 2 June, 202520.1mph SAverage June6.9mphStrongest 24 January, 202544.7mph WSWAverage 20256.1mphClimate (2011–Present)Glasgow/bishopton (7km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 24 January, 202544.7mph WSWAverage 2020–20256.2mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average July15%8.75%2.5%CalmStrongJuly Wind RoseJuly (5 Year Average)5 Year Average Annual5 Year Average July20%11.25%2.5%CalmStrongGet WillyWeather+ to remove ads