St Winnow Rainfall ForecastUnited KingdomSWCornwallSt WinnowToday 1 Apr50%Thu 2 Apr60%Fri 3 Apr60%Sat 4 Apr45%Sun 5 Apr25%Mon 6 Apr50%St Winnow rainfall forecast issued today at 1:36 am. Next forecast at approx. 3:36 pm.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