Trevithick Rainfall ForecastUnited KingdomSWCornwallTrevithickToday 8 Jun65%Tue 9 Jun70%Wed 10 Jun35%Thu 11 Jun55%Fri 12 Jun20%Sat 13 Jun10%Trevithick rainfall forecast issued today at 1:36 am. Next forecast at approx. 3:36 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