UV Index Today in Washtenaw County, Michigan (MI)

The average maximum UV Index today across 31 locations in Washtenaw County, Michigan (MI), is 7.3. The highest projected maximum is 7.3 in Ann Arbor at 2:00 PM EDT, while the lowest projected maximum is 7.1 in South Lyon at 1:00 PM EDT.

Tomorrow, the average maximum UV Index across those same locations is expected to be 4.5. The highest projected maximum is 5.4 in Novi at 3:00 PM EDT, and the lowest projected maximum is 4.1 in Ann Arbor at 3:00 PM EDT.