Ash Rainfall ForecastUnited KingdomSWDorsetAshToday 18 Dec100%Thu 19 Dec10%Fri 20 Dec55%Sat 21 Dec45%Sun 22 Dec10%Mon 23 Dec15%Ash rainfall forecast issued today at 12:37 am. Next forecast at approx. 2:37 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Dean Hill (Wiltshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads