St Day Rainfall ForecastUnited KingdomSWCornwallSt DayToday 2 Feb25%Mon 3 Feb50%Tue 4 Feb95%Wed 5 Feb5%Thu 6 Feb5%Fri 7 Feb10%Sat 8 Feb10%St Day rainfall forecast issued today at 6:38 pm. Next forecast at approx. 8:38 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