Port St Mary Rainfall ForecastUnited KingdomDGDumfries and GallowayPort St MaryToday 5 Nov50%Fri 6 Nov55%Sat 7 Nov40%Sun 8 Nov5%Mon 9 Nov10%Tue 10 Nov50%Wed 11 Nov55%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Port St Mary rainfall forecast issued today at 6:11 pm. Next forecast at approx. 8:11 am. Rainfall Rainfall AccumulationCastor Bay (Lurgan) RadarGet WillyWeather+ to remove ads