St Mary's Rainfall ForecastUnited KingdomSWCornwallSt Mary'sToday 9 Jan55%Sat 10 Jan80%Sun 11 Jan80%Mon 12 Jan35%Tue 13 Jan35%Wed 14 Jan35%Thu 15 Jan35%St Mary's rainfall forecast issued today at 12:37 pm. Next forecast at approx. 2:37 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