Harnham Hill Rainfall ForecastUnited KingdomSWWiltshireHarnham HillToday 4 Sep95%Sat 5 Sep5%Sun 6 Sep5%Mon 7 Sep55%Tue 8 Sep40%Wed 9 Sep15%Thu 10 Sep15%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 1:09 pm. Next forecast at approx. 3:09 am. Rainfall Rainfall AccumulationDean Hill (Wiltshire) RadarGet WillyWeather+ to remove ads