St Allen Rainfall ForecastUnited KingdomSWCornwallSt AllenToday 6 Jul90%Mon 7 Jul70%Tue 8 Jul5%Wed 9 Jul5%Thu 10 JulNo RainFri 11 JulNo RainSat 12 Jul5%St Allen rainfall forecast issued today at 7:36 pm. Next forecast at approx. 9:36 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