St Mary's Rainfall ForecastUnited KingdomSWCornwallSt Mary'sToday 9 Mar10%Tue 10 Mar85%Wed 11 Mar60%Thu 12 Mar85%Fri 13 Mar55%Sat 14 Mar35%Sun 15 Mar15%St Mary's rainfall forecast issued today at 6:36 pm. Next forecast at approx. 8:36 am.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