Alltwern Rainfall ForecastUnited KingdomWLSwanseaAlltwernToday 30 Apr10%Fri 1 May55%Sat 2 May55%Sun 3 May45%Mon 4 May15%Tue 5 May10%Wed 6 May10%Alltwern rainfall forecast issued today at 7:38 am. Next forecast at approx. 9:38 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