Fiddle Creek Arm Siltcoos Lake UV IndexUnited StatesORDouglas CountyFiddle Creek Arm Siltcoos Lake1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAFiddle Creek Arm Siltcoos Lake UV forecast issued yesterday at 11:17 am. Next forecast at approx. 11:17 am.Get WillyWeather+ to remove ads