St Erth Rainfall ForecastUnited KingdomSWCornwallSt ErthToday 19 Jun10%Fri 20 Jun45%Sat 21 Jun25%Sun 22 Jun15%Mon 23 Jun10%Tue 24 Jun15%St Erth 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