Derrytrasna Rainfall ForecastUnited KingdomNICraigavonDerrytrasnaToday 13 Sep85%Mon 14 Sep95%Tue 15 Sep60%Wed 16 Sep60%Thu 17 Sep45%Fri 18 Sep35%Sat 19 Sep40%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Derrytrasna rainfall forecast issued today at 7:08 pm. Next forecast at approx. 9:08 am. Rainfall Rainfall AccumulationCastor Bay (Lurgan) RadarGet WillyWeather+ to remove ads