St Mary's Rainfall ForecastUnited KingdomSWCornwallSt Mary'sToday 19 Apr5%Mon 20 Apr5%Tue 21 Apr5%Wed 22 Apr15%Thu 23 Apr5%Fri 24 Apr5%St Mary's 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