Isle of Bute - Glencallum Bay UV IndexUnited KingdomSTArgyll and ButeIsle of Bute - Glencallum Bay1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAIsle of Bute - Glencallum Bay UV forecast issued yesterday at 6:52 pm. Next forecast at approx. 6:52 pm.Get WillyWeather+ to remove ads