Cwm-twrch Isaf Rainfall ForecastUnited KingdomWLPowysCwm-twrch IsafToday 7 Nov15%Sun 8 Nov15%Mon 9 Nov55%Tue 10 Nov80%Wed 11 Nov60%Thu 12 Nov20%Fri 13 Nov5%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Cwm-twrch Isaf rainfall forecast issued today at 6:09 am. Next forecast at approx. 8:09 pm. Rainfall Rainfall AccumulationCrug-y-Gorllwyn (Carmarthenshire) RadarGet WillyWeather+ to remove ads