Portland Bill Lighthouse Rainfall ForecastUnited KingdomSWDorsetPortland Bill LighthouseToday 18 Sep10%Fri 19 Sep10%Sat 20 Sep35%Sun 21 Sep40%Mon 22 Sep5%Tue 23 Sep5%Wed 24 Sep10%Portland Bill Lighthouse rainfall forecast issued today at 7:36 am. Next forecast at approx. 9:36 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