Worst air pollution Downtown Elgin - Elgin, today and tomorrow
Today (16 July): Air quality in Downtown Elgin is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 36.0/100).
Tomorrow (17 July 2026): Air quality in Downtown Elgin is fair. AQI improves to medium; NO2 decreases to medium; all other pollutants stay as today. Pollution peaks around 8:00 PM (NO2: 41.4/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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As the city's historic riverside downtown, Downtown Elgin experiences air quality conditions similar to the rest of Elgin, following the same broader regional pattern. Any local variation tends to be minor compared with the seasonal swings seen across the wider city.
Today - 16 July | Pollution peaks at 12:00
AQI:
Fair
36.0/100
PM2.5 (fine particles):
Good
15.8/100
PM10 (coarse particles):
Good
16.9/100
NO2 (nitrogen dioxide):
Fair
30.8/100
O3 (ozone):
Fair
36.0/100
SO2 (sulfur dioxide):
Good
2.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.1/100
PM1 (ultrafine particles):
Good
7.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 20:00
AQI:
Medium
41.4/100
PM2.5 (fine particles):
Good
11.5/100
PM10 (coarse particles):
Good
7.0/100
NO2 (nitrogen dioxide):
Medium
41.4/100
O3 (ozone):
Fair
37.9/100
SO2 (sulfur dioxide):
Good
2.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.3/100
PM1 (ultrafine particles):
Good
7.6/100
Other Landmarks in Elgin
Frequently Asked Questions
Is air quality bad in Downtown Elgin right now?
On 16 July 2026, overall air quality in Downtown Elgin is fair. AQI is the main air quality indicator at 36.0/100. Pollution peaks around 12:00 PM (O3: 36.0/100).
Will air quality be worse tomorrow in Downtown Elgin?
On 17 July 2026, air quality conditions in Downtown Elgin will be similar to today, with O3 forecast at fair at 37.9/100. Pollution peaks around 8:00 PM (NO2: 41.4/100).
When is air pollution at its worst in Downtown Elgin?
This neighborhood in Elgin sees air quality shift through the year. Typically, the cleanest stretches usually come in spring and fall, between the summer ozone season and the calmer winter pollution episodes, while 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 Elgin 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.
Want to see air quality forecasts for other cities in United States?
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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