The Collon Rainfall ForecastUnited KingdomNIDerryThe CollonToday 15 Aug90%Sun 16 Aug80%Mon 17 Aug90%Tue 18 Aug45%Wed 19 Aug60%Thu 20 Aug40%Fri 21 Aug30%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time The Collon rainfall forecast issued today at 7:09 pm. Next forecast at approx. 9:09 am. Rainfall Rainfall AccumulationCastor Bay (Lurgan) RadarGet WillyWeather+ to remove ads