San Joaquin River - Fourteenmile Slough Entrance UV IndexUnited StatesCASan Joaquin CountySan Joaquin River - Fourteenmile Slough Entrance1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAASan Joaquin River - Fourteenmile Slough Entrance UV forecast issued yesterday at 12:17 pm. Next forecast at approx. 12:17 pm.Get WillyWeather+ to remove ads