Outdoor
Consider keeping outdoor activity lighter until conditions improve.
Why: AQI or pollutant levels are elevated, so this guidance is more cautious.
Indianapolis, Indiana, United States
Indianapolis air quality today
Consider keeping outdoor activity lighter until conditions improve.
Data: Hourly Open-Meteo model estimateThe latest update is older than expected, so this page is showing an estimate for the current hour.Detailed metrics and guidance use the latest available detailed data.
Practical guidance
Running
Outdoor running is generally fine. If you are sensitive to air pollution, consider keeping the effort easy.
Why: Air quality indicators are elevated, so the running guidance is more cautious.
Ventilation
Consider waiting before longer ventilation.
Why: AQI or pollutant levels are elevated, so longer ventilation may be better later.
Air quality and outdoor metrics
US AQI
Air Quality Index
86
Moderate
PM2.5
Fine particulate matter
4.4µg/m³
Low
PM10
Coarse particulate matter
4.5µg/m³
Low
NO₂
Nitrogen dioxide
7µg/m³
Low
O₃
Ozone
88µg/m³
Moderate
UV index
Sun exposure level
0
Low
Temperature
Air temperature
27°C
Warm
Feels like
Apparent temperature
32°C
Hot
Wind
Wind speed
1km/h
Light
Humidity
Relative humidity
81%
Humid
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Disclaimer
This information is a general estimate only and is not medical advice.
Location
Indianapolis, United States
Coordinates: 39.7684, -86.1581 · America/Indiana/Indianapolis
Interpret AQI for outdoor activity
Calculic's European AQI calculator assesses the value using your population group and planned activity intensity.
Interpret AQI in CalculicThis page's European AQI value, city and timestamp are passed to the calculator through the link.
What affects air quality in Indianapolis
IDEM's near-road monitoring in Indianapolis focuses on the Interstate 70 roadway environment, collecting nitrogen dioxide, black carbon, PM2.5 and other pollutant data.
This is local roadway-pollution monitoring context, not a ranking of emission sources, a current reading or a citywide condition.
Local monitoring and context
IDEM operates an NCore multi-pollutant site in Indianapolis with measurements that include fine particles, particle composition, ozone, carbon monoxide and sulfur dioxide.
This describes official station capabilities; it neither makes one site representative of all neighborhoods nor attributes this page's current data to IDEM.
City air quality FAQ
How should I read the AQI for Indianapolis?
US AQI condenses air quality into one value. On this page, it helps you quickly judge whether conditions look good, moderate or more polluted than usual.
Is the air quality good for going outside?
Check the outdoor and running cards first. They combine AQI, particles, ozone, weather and other factors that can affect outdoor comfort.
Should I ventilate right now?
The ventilation card considers AQI and pollutants such as particles, nitrogen dioxide and ozone. If values are elevated, a shorter opening or a later moment may be better.
Why can air quality change during the day?
Weather, emissions, ozone formation, particles and air flow can shift local conditions, so the next hours can differ from the current reading.
Sources and methodology
Current data
This page uses US AQI.
Current and hourly air-quality values are CAMS-based model estimates, not measurements from a local monitoring station. They may not reflect street-level conditions.
- Displayed state
- This hour's model estimate
- Data time
- 5 Sept 2026, 09:00 pm
- Data source
- Open-Meteo
The latest update is older than expected, so this page is showing an estimate for the current hour.
Detailed metrics and guidance use the latest available detailed data.
Evergreen city statements
Each local statement is linked to a checked primary-authority source. A source check is editorial provenance and does not describe current-data freshness.
Local sources support the background claims below; they are not the source of the current data shown above unless explicitly stated otherwise.
Authoritative sources for local statements
What IDEM Monitors — NCore and Near-Road NO2 Monitoring
Indiana Department of Environmental Management
- Scope
- Indianapolis
- Source checked
- 31 Aug 2026
The NCore section locates a multi-pollutant site in Indianapolis; the near-road section identifies an Interstate 70 site and its pollutant suite.
Applicability: Official local or regional background only; not current conditions, citywide uniformity, regulatory attainment or this site's current-data provenance.
Based on this source: IDEM's near-road monitoring in Indianapolis focuses on the Interstate 70 roadway environment, collecting nitrogen dioxide, black carbon, PM2.5 and other pollutant data.
IDEM operates an NCore multi-pollutant site in Indianapolis with measurements that include fine particles, particle composition, ozone, carbon monoxide and sulfur dioxide.