UV Index Today in Ohio (OH)

Friday, May 22, 2026 -2:37 PMEDT (GMT-4)

The average maximum UV Index today across 2,133 locations in Ohio (OH), is 5.9. The highest projected maximum is 7.9 in Wadsworth at 1:00 PM EDT, while the lowest projected maximum is 1.4 in Grandview at 10:00 AM EDT.

Tomorrow, the average maximum UV Index across those same locations is expected to be 2.8. The highest projected maximum is 7.8 in Bellefontaine at 1:00 PM EDT, and the lowest projected maximum is 0.6 in East Liverpool at 12:00 PM EDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

88 Counties in Ohio (OH)

Average Maximum UV Index Today
  • Butler County - 4.5
  • Cuyahoga County - 6.9
  • Franklin County - 3.4
  • Hamilton County - 5.1
  • Lorain County - 6.6
  • Lucas County - 7.2
  • Montgomery County - 5.1
  • Stark County - 7.5
  • Summit County - 7.3
  • Warren County - 4.8
Data Source: National Oceanic and Atmospheric Administration (NOAA)

881 Places in Ohio (OH)

Maximum UV Index Today
  • Cincinnati - 4.6
  • Cleveland - 7.1
  • Columbus - 3.4
  • Toledo - 6.8
Data Source: National Oceanic and Atmospheric Administration (NOAA)