Mynydd Isa Rainfall ForecastUnited KingdomWLFlintshireMynydd IsaToday 17 Feb5%Wed 18 Feb85%Thu 19 Feb10%Fri 20 Feb55%Sat 21 Feb10%Sun 22 Feb50%Mon 23 Feb15%Mynydd Isa rainfall forecast issued today at 6:37 am. Next forecast at approx. 8:37 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Hameldon Hill (Lancashire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads