River Foyle - River Faughan Entrance Rainfall ForecastUnited KingdomNIDerryRiver Foyle - River Faughan EntranceToday 18 Aug70%Wed 19 Aug85%Thu 20 Aug35%Fri 21 Aug30%Sat 22 Aug30%Sun 23 Aug10%Mon 24 Aug10%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time River Foyle - River Faughan Entrance rainfall forecast issued today at 1:09 pm. Next forecast at approx. 3:09 am. Rainfall Rainfall AccumulationCastor Bay (Lurgan) RadarGet WillyWeather+ to remove ads