It's forecasted to be a very warm weekend, and that could be a heath risk for some individuals.
The Northeast Ohio Areawide Coordinating Agency has issued an Air Quality Advisory for much of the listening area Saturday.
The counties under the advisory include Medina, Summit and Portage, as well as all greater Cleveland counties.
The NOACA warns that air quality levels may be "unhealthy for sensitive groups" during this period.
The National Weather Service also has a large part northern Ohio under a Heat Advisory until 8:00 Sunday.
Hot, dry weather has prompted another Air Quality Advisory in Northeast Ohio.
Local air quality monitors say an advisory for ground-level ozone will be in effect through Tuesday, with air quality levels "unhealthy for sensitive groups".
The advisory is for Summit, Portage and Medina Counties along with all greater Cleveland area counties.
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(NOACA) An Air Quality Advisory for ground-level ozone has been issued for Ashtabula, Cuyahoga, Geauga, Lake, Lorain, Medina, Portage and Summit Counties. The advisory will be effective through Tuesday, July 12, 2016. Air quality levels will be 'Unhealthy for Sensitive Groups' during this period.