Muckle Holm (Shetland Islands) UV IndexUnited KingdomOSShetland IslandsMuckle Holm (Shetland Islands)1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAMuckle Holm (Shetland Islands) UV forecast issued today at 7:51 pm. Next forecast at approx. 7:51 pm. UV IndexGet WillyWeather+ to remove ads