UV Index Today in Butler County, Ohio (OH)

Friday, May 22, 2026 -2:39 PMEDT (GMT-4)

The average maximum UV Index today across 39 locations in Butler County, Ohio (OH), is 4.5. The highest projected maximum is 5.5 in Ross at 12:00 PM EDT, while the lowest projected maximum is 4.2 in Hamilton at 12:00 PM EDT.

Tomorrow, the average maximum UV Index across those same locations is expected to be 3.4. The highest projected maximum is 4 in Oxford at 4:00 PM EDT, and the lowest projected maximum is 1.8 in Mason at 5:00 PM EDT.

14 County Subdivisions in Butler County, Ohio (OH)

Maximum UV Index Today

25 Places in Butler County, Ohio (OH)

Maximum UV Index Today