Porth Mellin Rainfall ForecastUnited KingdomSWCornwallPorth MellinToday 3 Jul5%Fri 4 Jul50%Sat 5 Jul75%Sun 6 Jul20%Mon 7 Jul5%Tue 8 Jul5%Porth Mellin rainfall forecast issued today at 7:38 am. Next forecast at approx. 9:38 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Predannack (Cornwall) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads