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 11:18 am. Next forecast at approx. 11:18 am.Get WillyWeather+ to remove ads