Castell Howell Rainfall ForecastUnited KingdomWLCeredigionCastell HowellToday 20 Jun30%Sat 21 Jun55%Sun 22 Jun65%Mon 23 Jun50%Tue 24 Jun55%Wed 25 Jun50%Thu 26 Jun40%Castell Howell rainfall forecast issued today at 1:36 pm. Next forecast at approx. 3:36 am.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