St Allen Rainfall ForecastUnited KingdomSWCornwallSt AllenToday 25 Sep5%Sat 26 Sep45%Sun 27 Sep55%Mon 28 Sep20%Tue 29 Sep55%Wed 30 Sep35%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time St Allen rainfall forecast issued today at 1:08 am. Next forecast at approx. 3:08 pm. Rainfall Rainfall AccumulationPredannack (Cornwall) RadarGet WillyWeather+ to remove ads