Mokelumne River - Georgiana Slough Entrance UV IndexUnited StatesCASacramento CountyMokelumne River - Georgiana Slough Entrance1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAMokelumne River - Georgiana Slough Entrance UV forecast issued yesterday at 12:18 pm. Next forecast at approx. 12:18 pm. UV IndexGet WillyWeather+ to remove ads