Fort McCoy Barrens State Natural Area UV IndexUnited StatesWIMonroe CountyFort McCoy Barrens State Natural Area1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAFort McCoy Barrens State Natural Area UV forecast issued today at 1:17 pm. Next forecast at approx. 1:17 pm. UV IndexGet WillyWeather+ to remove ads