McHenry County UV Forecast

Very high9.4McHenry

Very high UV, 9.4

Very high9.4Woodstock

Very high UV, 9.4

Very high9.4Harvard

Very high UV, 9.4

Very high9.6Crystal Lake

Very high UV, 9.6

Very high9.2Spring Grove

Very high UV, 9.2

Very high9.6Marengo

Very high UV, 9.6