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 yesterday at 12:19 pm. Next forecast at approx. 12:19 pm.Get an account to remove ads