Harrow Wind ForecastUnited KingdomSEGreater LondonHarrow1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Harrow wind forecast issued yesterday at 7:09 pm. Next forecast at approx. 7:09 am.Harrow Wind Statistics July WindNortholt (6km)2025JuneJulyStrongest – Average July–Strongest 23 June, 202522.4mph WNWAverage June7.6mphStrongest 1 January, 202524.6mph SWAverage 20256.1mphClimate (2011–Present)Northolt (6km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 18 February, 202238mph WSWAverage 2020–20256.4mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average July20%11.25%2.5%CalmFreshJuly Wind RoseJuly (5 Year Average)5 Year Average Annual5 Year Average July25%13.75%2.5%CalmFreshGet WillyWeather+ to remove ads