Siletz Bay - Millport Slough Entrance UV IndexUnited StatesORLincoln CountySiletz Bay - Millport Slough Entrance1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAASiletz Bay - Millport Slough Entrance UV forecast issued yesterday at 12:19 pm. Next forecast at approx. 12:19 pm.Get an account to remove ads