Mokelumne River - North Mokelumne River Entrance UV IndexUnited StatesCASacramento CountyMokelumne River - North Mokelumne River Entrance1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAMokelumne River - North Mokelumne River Entrance UV forecast issued today at 12:17 pm. Next forecast at approx. 12:17 pm.Get WillyWeather+ to remove ads