Worst air pollution Cedar Rapids, today and tomorrow
Today (9 August): Air quality in Cedar Rapids is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 AM (NO2: 33.6/100).
Tomorrow (10 August 2026): Air quality in Cedar Rapids is fair. AQI improves to medium; NO2 decreases to medium; all other pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 52.4/100). 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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Cedar Rapids' air quality reflects the Cedar River valley's flat Iowa terrain providing generally good wind dispersal, with vehicle emissions from I-380 and the surrounding grain processing and food manufacturing industry — including the characteristic Quaker Oats facility — contributing elevated organic particulates and NOₓ. Prevailing westerly Iowa prairie winds generally keep readings at moderate levels, while regional ozone from agricultural sources across the Upper Midwest is the primary warm-season concern.
Today - 9 August | Pollution peaks at 00:00
AQI:
Fair
33.6/100
PM2.5 (fine particles):
Good
10.8/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Fair
33.6/100
O3 (ozone):
Fair
32.8/100
SO2 (sulfur dioxide):
Good
4.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.0/100
PM1 (ultrafine particles):
Good
13.2/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 23:00
AQI:
Medium
52.4/100
PM2.5 (fine particles):
Good
12.6/100
PM10 (coarse particles):
Good
6.9/100
NO2 (nitrogen dioxide):
Medium
52.4/100
O3 (ozone):
Fair
34.7/100
SO2 (sulfur dioxide):
Good
5.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.7/100
PM1 (ultrafine particles):
Good
8.6/100
Pollen forecast in Cedar Rapids
View pollen forecastFrequently Asked Questions
Is air quality bad in Cedar Rapids right now?
On 9 August 2026, overall air quality in Cedar Rapids is fair. AQI is the main air quality indicator at 33.6/100. Pollution peaks around 12:00 AM (NO2: 33.6/100).
Will air quality be worse tomorrow in Cedar Rapids?
On 10 August 2026, air quality conditions in Cedar Rapids will be similar to today, with O3 forecast at fair at 34.7/100. Pollution peaks around 11:00 PM (NO2: 52.4/100).
When is air pollution at its worst in Cedar Rapids?
Air quality in Cedar Rapids shifts across the year — the cleanest conditions usually come in winter, once the growing season dust and pollen have passed, whereas summer heat waves and the dust of planting and harvest seasons are the main annual concerns. Wide-open terrain generally helps disperse pollution quickly once the wind picks up.
Are air quality levels in Cedar Rapids 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: 9 August 2026 at 20:27 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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