Umpqua River - Jerden Cove UV IndexUnited StatesORDouglas CountyUmpqua River - Jerden Cove1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAUmpqua River - Jerden Cove UV forecast issued yesterday at 12:18 pm. Next forecast at approx. 12:18 pm.Get WillyWeather+ to remove ads