Alwen Reservoir Rainfall ForecastUnited KingdomWLConwyAlwen ReservoirToday 6 Sep5%Sun 7 Sep85%Mon 8 Sep40%Tue 9 Sep20%Wed 10 Sep45%Thu 11 Sep40%Fri 12 Sep35%Alwen Reservoir rainfall forecast issued today at 1:37 pm. Next forecast at approx. 3:37 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Clee Hill (Shropshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads