Portland Bill Lighthouse Rainfall ForecastUnited KingdomSWDorsetPortland Bill LighthouseToday 10 Jul5%Sat 11 JulNo RainSun 12 Jul5%Mon 13 Jul40%Tue 14 Jul5%Wed 15 Jul10%Thu 16 Jul5%Portland Bill Lighthouse rainfall forecast issued today at 7:36 pm. Next forecast at approx. 9:36 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Rainfall Rainfall AccumulationDean Hill (Wiltshire) RadarGet WillyWeather+ to remove ads