Harlech Rainfall ForecastUnited KingdomWLGwyneddHarlechToday 7 Apr15%Wed 8 Apr60%Thu 9 Apr85%Fri 10 Apr85%Sat 11 Apr45%Sun 12 Apr55%Mon 13 Apr50%Harlech rainfall forecast issued today at 7:39 am. Next forecast at approx. 9:39 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Crug-y-Gorllwyn (Carmarthenshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads