Porth Mellin Rainfall ForecastUnited KingdomSWCornwallPorth MellinToday 11 Jul5%Sun 12 Jul30%Mon 13 Jul15%Tue 14 Jul15%Wed 15 Jul35%Thu 16 Jul5%Fri 17 Jul10%Porth Mellin rainfall forecast issued today at 7:36 pm. Next forecast at approx. 9:36 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Rainfall Rainfall AccumulationPredannack (Cornwall) RadarGet WillyWeather+ to remove ads