Worst air pollution Appleton, today and tomorrow
Today (16 July): Air quality in Appleton is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 37.5/100).
Tomorrow (17 July 2026): Air quality in Appleton is fair. All pollutants stay as today. Pollution peaks around 7:00 AM (O3: 30.7/100). 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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Appleton's air quality benefits from Fox River valley's position in the Lake Michigan coastal region, with consistent Great Lakes westerly and northerly winds providing clean maritime ventilation from the lake across this Wisconsin paper and manufacturing city. Vehicle emissions from US-41 and the surrounding paper and specialty manufacturing industry contribute local sources, while summer regional ozone from the broader Great Lakes industrial airshed is the primary warm-season concern across the Fox Cities metropolitan area.
Today - 16 July | Pollution peaks at 08:00
AQI:
Fair
37.5/100
PM2.5 (fine particles):
Good
9.4/100
PM10 (coarse particles):
Good
4.7/100
NO2 (nitrogen dioxide):
Good
6.1/100
O3 (ozone):
Fair
37.5/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.0/100
PM1 (ultrafine particles):
Good
8.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 07:00
AQI:
Fair
30.7/100
PM2.5 (fine particles):
Good
8.2/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Good
6.4/100
O3 (ozone):
Fair
30.7/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.3/100
PM1 (ultrafine particles):
Good
6.6/100
Pollen forecast in Appleton
View pollen forecastFrequently Asked Questions
Is air quality bad in Appleton right now?
On 16 July 2026, overall air quality in Appleton is fair. AQI is the main air quality indicator at 37.5/100. Pollution peaks around 8:00 AM (O3: 37.5/100).
Will air quality be worse tomorrow in Appleton?
On 17 July 2026, air quality conditions in Appleton will be similar to today, with AQI forecast at fair at 30.7/100. Pollution peaks around 7:00 AM (O3: 30.7/100).
When is air pollution at its worst in Appleton?
Appleton follows a fairly predictable seasonal air quality pattern. Typically, the cleanest stretches usually come in spring and fall, between the summer ozone season and the calmer winter pollution episodes, while summer heat waves are the main driver of poor air quality, as ozone builds under stagnant, humid conditions. Calm, cold winter spells can occasionally allow local pollution to build up before the next weather system clears it.
Are air quality levels in Appleton 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