St Mary's Rainfall ForecastUnited KingdomSWCornwallSt Mary'sToday 19 Sep50%Sun 20 Sep10%Mon 21 Sep10%Tue 22 Sep5%Wed 23 Sep5%Thu 24 Sep10%Fri 25 Sep10%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time St Mary's rainfall forecast issued today at 1:10 pm. Next forecast at approx. 3:10 am. Rainfall Rainfall AccumulationPredannack (Cornwall) RadarGet WillyWeather+ to remove ads