Harleston Rainfall ForecastUnited KingdomSWDevonHarlestonToday 29 Mar45%Sat 30 Mar30%Sun 31 Mar50%Mon 1 Apr35%Tue 2 Apr80%Wed 3 Apr45%Thu 4 Apr75%Harleston rainfall forecast issued today at 12:43 pm. Next forecast at approx. 2:43 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Cobbacombe Cross (Devon) RadarNational SatelliteNational SynopticGet an account to remove ads