Tregatta Rainfall ForecastUnited KingdomSWCornwallTregattaToday 12 Feb70%Fri 13 Feb85%Sat 14 Feb80%Sun 15 Feb65%Mon 16 Feb45%Tue 17 Feb40%Wed 18 Feb40%Tregatta rainfall forecast issued today at 12:36 pm. Next forecast at approx. 2:36 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