Portstewart Rainfall ForecastUnited KingdomNIColerainePortstewartToday 21 Nov90%Fri 22 Nov100%Sat 23 Nov100%Sun 24 Nov15%Mon 25 Nov60%Tue 26 Nov15%Wed 27 Nov10%Portstewart rainfall forecast issued today at 12:40 pm. Next forecast at approx. 2:40 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Castor Bay (Lurgan) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads