Worst air pollution South Beloit, today and tomorrow
Today (9 August): Air quality in South Beloit is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 34.0/100).
Tomorrow (10 August 2026): Air quality in South Beloit is fair. All pollutants stay as today. Pollution peaks around 12:00 PM (O3: 33.4/100). Airmine updates local air quality forecasts four times daily.
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This small community on the Wisconsin border near Rockford sees a mostly suburban and rural emissions profile. A local forest preserve and the vegetation along the Spoon River provide some natural buffering against local particulate matter. Day-to-day readings shift mainly with wind direction, temperature, and general weather conditions. Short-term spikes can still occur during unusual weather or nearby construction.
Today - 9 August | Pollution peaks at 07:00
AQI:
Fair
34.0/100
PM2.5 (fine particles):
Good
5.3/100
PM10 (coarse particles):
Good
3.6/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
34.0/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
4.1/100
PM1 (ultrafine particles):
Good
3.8/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 12:00
AQI:
Fair
33.4/100
PM2.5 (fine particles):
Good
6.5/100
PM10 (coarse particles):
Good
3.8/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
33.4/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
6.7/100
PM1 (ultrafine particles):
Good
4.2/100
Pollen forecast in South Beloit
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in South Beloit
Frequently Asked Questions
Is air quality bad in South Beloit right now?
On 9 August 2026, overall air quality in South Beloit is fair. AQI is the main air quality indicator at 34.0/100. Pollution peaks around 7:00 AM (O3: 34.0/100).
Will air quality be worse tomorrow in South Beloit?
On 10 August 2026, air quality conditions in South Beloit will be similar to today, with AQI forecast at fair at 33.4/100. Pollution peaks around 12:00 PM (O3: 33.4/100).
When is air pollution at its worst in South Beloit?
The coldest months tend to bring South Beloit's worst particulate levels, as heating demand and traffic settle in under stagnant winter air. By summer, ground-level ozone becomes the bigger issue, as intense heat and sunlight drive photochemical smog. The Rock River valley here can trap cold-season emissions under calm winter conditions.
Are air quality levels in South Beloit 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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