Harnham Hill Rainfall ForecastUnited KingdomSWWiltshireHarnham HillToday 20 Jul5%Tue 21 JulNo RainWed 22 Jul5%Thu 23 Jul5%Fri 24 JulNo RainSat 25 Jul5%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Harnham Hill rainfall forecast issued today at 1:59 am. Next forecast at approx. . Rainfall Rainfall AccumulationDean Hill (Wiltshire) RadarGet WillyWeather+ to remove ads