Alltwern Rainfall ForecastUnited KingdomWLSwanseaAlltwernToday 14 Jun50%Mon 15 Jun50%Tue 16 Jun95%Wed 17 Jun55%Thu 18 Jun50%Fri 19 Jun50%Sat 20 Jun15%Alltwern rainfall forecast issued today at 7:38 pm. Next forecast at approx. 9:38 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