Mawnan Smith Rainfall ForecastUnited KingdomSWCornwallMawnan SmithToday 27 Aug75%Thu 28 Aug60%Fri 29 Aug40%Sat 30 Aug80%Sun 31 Aug40%Mon 1 Sep40%Mawnan Smith 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