St Austell Rainfall ForecastUnited KingdomSWCornwallSt AustellToday 31 Mar55%Wed 1 Apr55%Thu 2 Apr50%Fri 3 Apr60%Sat 4 Apr50%Sun 5 Apr30%St Austell 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