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Ohio Air Quality

Current AQI at 60 monitors, highest 64 (Moderate) · Measured 10/31/2026, 3:00 AM PT

Monitors
60
Highest AQI
64
Moderate
Typical (median)
22
Good
Above 100
0

Monitoring sites in Ohio

Worst first. Times are local.

  • 64Harvard YardsModerate · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 60East HSModerate · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 60GT Craig NCore PAMSModerate · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 60Portsmouth Water Treatment PlantModerate · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 59Laird Eng BldgModerate · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 56St TheodosiusModerate · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 54CantonModerate · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 53ChippewaModerate · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 53ErieModerate · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 52Cincinnati Near RoadModerate · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 47Cleveland Fire St13Good · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 47Eastside Pump StGood · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 38FairgroundsGood · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 37SteubenvilleGood · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 36ColerainGood · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 33Maple CanyonGood · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 33ODOT IrontonGood · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 32Preble NCoreGood · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 32SinclairGood · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 32Springfield Fire St1Good · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 31District 6Good · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 30Smoky Row Near RoadGood · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 29LebanonGood · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 23Cleveland Near RoadGood · Fine particles (PM2.5) · Sat 10/31/2026, 5:00 AM EDT
  • 23LimaGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 23Miami East HSGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 23OxfordGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 22BataviaGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 22EastwoodGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 22New AlbanyGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 22Quaker CityGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 22SycamoreGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 21Notre DameGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 19Centerburg WWTPGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 19DelawareGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 19ReynoldsburgGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 19Springfield Well FdGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 19XeniaGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 18Marietta WTPGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 17WilmingtonGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 15LondonGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 14CooleyGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 12Bowling GreenGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 12Malone UnivGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 11Crawford WoodsGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 11Middletown AirportGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 10HeathGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 10Mud RunGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 9ConneautGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 7TCSEGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 7WatervilleGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 6BrewsterGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 5EastlakeGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 4Kinsman MaintenanceGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 3SheffieldGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 1AllianceGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 1Lake RockwellGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 1PainesvilleGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 0Berea BOEGood · Ozone · Sat 10/31/2026, 5:00 AM EDT
  • 0WilgusGood · Ozone · Sat 10/31/2026, 5:00 AM EDT

By county

Highest current AQI among the county's monitors

Frequently asked questions

Where is the air worst in Ohio right now?
Harvard Yards has the highest current reading at AQI 64 (Moderate).
How often are readings updated?
Monitors report every hour. We refresh this page with the latest hour from EPA AirNow.

Source: EPA AirNow · Last updated 10/31/2026 · Data are preliminary and subject to change

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