Tonna Rainfall ForecastUnited KingdomWLNeath Port TalbotTonnaToday 16 Sep90%Thu 17 Sep15%Fri 18 Sep60%Sat 19 Sep50%Sun 20 Sep10%Mon 21 Sep15%Tue 22 Sep15%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Tonna rainfall forecast issued today at 1:08 pm. Next forecast at approx. 3:08 am. Rainfall Rainfall AccumulationCrug-y-Gorllwyn (Carmarthenshire) RadarGet WillyWeather+ to remove ads