Penobscot River - Chamberlain Bridge UV IndexUnited StatesMEPenobscot CountyPenobscot River - Chamberlain Bridge1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAPenobscot River - Chamberlain Bridge UV forecast issued today at 3:18 pm. Next forecast at approx. 3:18 pm. UV IndexGet WillyWeather+ to remove ads