Portland Bill Lighthouse Rainfall ForecastUnited KingdomSWDorsetPortland Bill LighthouseToday 7 Sep50%Mon 8 Sep55%Tue 9 Sep55%Wed 10 Sep60%Thu 11 Sep60%Fri 12 Sep40%Portland Bill Lighthouse 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 Dean Hill (Wiltshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads