Helston Rainfall ForecastUnited KingdomSWCornwallHelstonToday 12 Feb60%Fri 13 Feb80%Sat 14 Feb90%Sun 15 Feb55%Mon 16 Feb35%Tue 17 Feb55%Helston rainfall forecast issued today at 12:36 am. Next forecast at approx. 2:36 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