Prehen Rainfall ForecastUnited KingdomNIDerryPrehenToday 10 Sep80%Fri 11 Sep75%Sat 12 Sep75%Sun 13 Sep15%Mon 14 Sep45%Tue 15 Sep35%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Prehen rainfall forecast issued today at 1:08 am. Next forecast at approx. 3:08 pm. Rainfall Rainfall AccumulationCastor Bay (Lurgan) RadarGet WillyWeather+ to remove ads