St Austell Rainfall ForecastUnited KingdomSWCornwallSt AustellToday 24 Aug45%Tue 25 Aug55%Wed 26 Aug65%Thu 27 Aug35%Fri 28 Aug35%Sat 29 Aug40%Sun 30 Aug40%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time St Austell rainfall forecast issued today at 1:09 pm. Next forecast at approx. 3:09 am. Rainfall Rainfall AccumulationPredannack (Cornwall) RadarGet WillyWeather+ to remove ads