Castell Howell Rainfall ForecastUnited KingdomWLCeredigionCastell HowellToday 6 Jul85%Mon 7 Jul10%Tue 8 Jul5%Wed 9 Jul15%Thu 10 Jul15%Fri 11 Jul5%Castell Howell rainfall forecast issued today at 1:36 am. Next forecast at approx. 3:36 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