St Mary's Rainfall ForecastUnited KingdomSWCornwallSt Mary'sToday 16 Oct35%Sat 17 Oct10%Sun 18 Oct10%Mon 19 Oct30%Tue 20 Oct30%Wed 21 Oct35%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 1:08 am. Next forecast at approx. 3:08 pm. Rainfall Rainfall AccumulationPredannack (Cornwall) RadarGet WillyWeather+ to remove ads