Penzance Harbour Rainfall ForecastUnited KingdomSWCornwallPenzance HarbourToday 6 Jun95%Sun 7 Jun55%Mon 8 Jun85%Tue 9 Jun35%Wed 10 Jun55%Thu 11 Jun55%Penzance Harbour rainfall forecast issued today at 7:37 am. Next forecast at approx. 9:37 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