Worst air pollution Lafayette, today and tomorrow
Today (16 July): Air quality in Lafayette is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (O3: 36.2/100).
Tomorrow (17 July 2026): Air quality in Lafayette is fair. All pollutants stay as today. Pollution peaks around 9:00 AM (O3: 38.9/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Lafayette's air quality in Indiana reflects the flat Wabash River valley providing generally good wind dispersal, with vehicle emissions from I-65 and the surrounding Purdue University campus and pharmaceutical manufacturing corridor contributing local sources in this mid-sized Indiana university city. Prevailing westerly Midwest winds generally keep readings at moderate levels, while summer regional ozone from agricultural and industrial sources across the broader Great Plains and Midwest airshed is the primary warm-season concern throughout the year.
Today - 16 July | Pollution peaks at 09:00
AQI:
Fair
36.2/100
PM2.5 (fine particles):
Good
12.0/100
PM10 (coarse particles):
Good
9.8/100
NO2 (nitrogen dioxide):
Good
12.6/100
O3 (ozone):
Fair
36.2/100
SO2 (sulfur dioxide):
Good
1.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.2/100
PM1 (ultrafine particles):
Good
6.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 09:00
AQI:
Fair
38.9/100
PM2.5 (fine particles):
Good
10.4/100
PM10 (coarse particles):
Good
5.7/100
NO2 (nitrogen dioxide):
Good
13.8/100
O3 (ozone):
Fair
38.9/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.7/100
PM1 (ultrafine particles):
Good
6.1/100
Pollen forecast in Lafayette
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Frequently Asked Questions
Is air quality bad in Lafayette right now?
On 16 July 2026, overall air quality in Lafayette is fair. AQI is the main air quality indicator at 36.2/100. Pollution peaks around 9:00 AM (O3: 36.2/100).
Will air quality be worse tomorrow in Lafayette?
On 17 July 2026, air quality conditions in Lafayette will be similar to today, with AQI forecast at fair at 38.9/100. Pollution peaks around 9:00 AM (O3: 38.9/100).
When is air pollution at its worst in Lafayette?
Lafayette follows a fairly predictable seasonal air quality pattern. In short, between summer ozone and occasional winter inversions, spring and fall are the year's cleanest stretch, whereas hot, humid summer conditions drive ozone formation, especially during heat waves. Lake-effect winds can help clear the air on many days near the Great Lakes shoreline.
Are air quality levels in Lafayette based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app