St Mary's Rainfall ForecastUnited KingdomSWCornwallSt Mary'sToday 9 Jul10%Thu 10 Jul10%Fri 11 JulNo RainSat 12 JulNo RainSun 13 Jul15%Mon 14 Jul35%Tue 15 Jul10%St Mary's 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