Howards Hollow Seep Nature Preserve UV IndexUnited StatesILVermilion CountyHowards Hollow Seep Nature Preserve1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAHowards Hollow Seep Nature Preserve UV forecast issued yesterday at 1:17 pm. Next forecast at approx. 1:17 pm.Get WillyWeather+ to remove ads