Black Rock Rainfall ForecastUnited KingdomSWCornwallBlack RockToday 2 Jul30%Thu 3 Jul5%Fri 4 Jul5%Sat 5 Jul55%Sun 6 Jul35%Mon 7 Jul30%Black Rock rainfall forecast issued today at 1:37 am. Next forecast at approx. 3:37 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