Pennant (Llanbrynmair) UV IndexUnited KingdomWLPowysPennant (Llanbrynmair)1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAPennant (Llanbrynmair) UV forecast issued today at 7:52 pm. Next forecast at approx. 7:52 pm.Get WillyWeather+ to remove ads