Portmellon Rainfall ForecastUnited KingdomSWCornwallPortmellonToday 1 May25%Thu 2 May80%Fri 3 May15%Sat 4 May35%Sun 5 May45%Mon 6 May15%Tue 7 May15%Portmellon rainfall forecast issued today at 1:38 pm. Next forecast at approx. 3:38 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Predannack (Cornwall) RadarNational SatelliteNational SynopticGet an account to remove ads