Mackay River (Daymark 239) UV IndexUnited StatesGAGlynn CountyMackay River (Daymark 239)1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAMackay River (Daymark 239) UV forecast issued today at 5:17 pm. Next forecast at approx. 5:17 pm. UV IndexGet WillyWeather+ to remove ads