Porth Colmon Rainfall ForecastUnited KingdomWLGwyneddPorth ColmonToday 18 Jul15%Sun 19 Jul15%Mon 20 Jul15%Tue 21 Jul15%Wed 22 Jul20%Thu 23 Jul10%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Porth Colmon rainfall forecast issued today at 4:34 am. Next forecast at approx. . Rainfall Rainfall AccumulationCrug-y-Gorllwyn (Carmarthenshire) RadarGet WillyWeather+ to remove ads