Butter Hole Rainfall ForecastUnited KingdomSWCornwallButter HoleToday 15 May50%Sat 16 May55%Sun 17 May40%Mon 18 May85%Tue 19 May55%Wed 20 May15%Butter Hole rainfall forecast issued today at 7:39 am. Next forecast at approx. 9:39 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