Castell Howell Rainfall ForecastUnited KingdomWLCeredigionCastell HowellToday 21 May55%Thu 22 May5%Fri 23 May50%Sat 24 May70%Sun 25 May40%Mon 26 May60%Castell Howell rainfall forecast issued yesterday at 7:37 pm. Next forecast at approx. 9:37 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