St Austell Rainfall ForecastUnited KingdomSWCornwallSt AustellToday 22 Oct45%Wed 23 Oct15%Thu 24 Oct75%Fri 25 Oct50%Sat 26 Oct50%Sun 27 Oct75%Mon 28 Oct45%St Austell rainfall forecast issued today at 7:39 pm. Next forecast at approx. 9:39 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