Worst air pollution Downtown Terre Haute - Terre Haute, today and tomorrow
Today (9 August): Air quality in Downtown Terre Haute is fair. PM2.5 and O3 are fair; AQI and NO2 are medium; PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 AM (NO2: 40.3/100).
Tomorrow (10 August 2026): Air quality in Downtown Terre Haute is fair. AQI worsens to fair; PM2.5 decreases to good; NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 AM (NO2: 35.2/100). 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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Air quality at Downtown Terre Haute, the city's historic downtown along the Wabash River, generally follows the pattern seen across Terre Haute, shaped by the same local and regional factors. Checking conditions closer to visit time is still the best way to plan around this specific site.
Today - 9 August | Pollution peaks at 04:00
AQI:
Medium
40.3/100
PM2.5 (fine particles):
Fair
22.5/100
PM10 (coarse particles):
Good
8.5/100
NO2 (nitrogen dioxide):
Medium
40.3/100
O3 (ozone):
Fair
35.7/100
SO2 (sulfur dioxide):
Good
11.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Good
17.1/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 00:00
AQI:
Fair
35.2/100
PM2.5 (fine particles):
Good
19.0/100
PM10 (coarse particles):
Good
7.5/100
NO2 (nitrogen dioxide):
Fair
35.2/100
O3 (ozone):
Fair
34.8/100
SO2 (sulfur dioxide):
Good
11.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Good
14.1/100
Other Landmarks in Terre Haute
Frequently Asked Questions
Is air quality bad in Downtown Terre Haute right now?
On 9 August 2026, overall air quality in Downtown Terre Haute is fair. O3 is the main pollutant at 35.7/100. Pollution peaks around 4:00 AM (NO2: 40.3/100).
Will air quality be worse tomorrow in Downtown Terre Haute?
On 10 August 2026, air quality conditions in Downtown Terre Haute will be similar to today, with AQI forecast at fair at 35.2/100. Pollution peaks around 12:00 AM (NO2: 35.2/100).
When is air pollution at its worst in Downtown Terre Haute?
Conditions at Downtown Terre Haute vary noticeably across the seasons. In short, between summer ozone and occasional winter inversions, spring and fall are the year's cleanest stretch, whereas the hottest, most humid summer days bring the year's worst ozone readings. Calm, cold winter spells can occasionally allow local pollution to build up before the next weather system clears it.
Are air quality levels in Downtown Terre Haute 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 10 August 2026 at 02:34 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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