Alwen Reservoir Rainfall ForecastUnited KingdomWLConwyAlwen ReservoirToday 19 Sep10%Sun 20 Sep15%Mon 21 Sep20%Tue 22 Sep60%Wed 23 Sep60%Thu 24 Sep20%Fri 25 Sep15%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Alwen Reservoir rainfall forecast issued today at 1:10 pm. Next forecast at approx. 3:10 am. Rainfall Rainfall AccumulationClee Hill (Shropshire) RadarGet WillyWeather+ to remove ads