Prehen Rainfall ForecastUnited KingdomNIDerryPrehenToday 1 Sep95%Tue 2 Sep60%Wed 3 Sep65%Thu 4 Sep45%Fri 5 Sep20%Sat 6 Sep20%Sun 7 Sep40%Prehen rainfall forecast issued today at 1:36 pm. Next forecast at approx. 3:36 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