Johnstone River - Humbug Reach UV IndexAustraliaQLDFar NorthJohnstone River - Humbug Reach1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAJohnstone River - Humbug Reach UV forecast issued yesterday at 9:06 pm. Next forecast at approx. 9:06 pm. UV IndexGet WillyWeather+ to remove ads