Cwm Penmachno Rainfall ForecastUnited KingdomWLConwyCwm PenmachnoToday 20 Jun15%Mon 21 Jun15%Tue 22 Jun5%Wed 23 Jun55%Thu 24 Jun55%Fri 25 Jun20%Sat 26 Jun20%Cwm Penmachno rainfall forecast issued today at 6:09 pm. Next forecast at approx. 8:09 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time National RadarNational SatelliteNational SynopticGet an account to remove ads