Stay updated with real-time air quality in Sycamore, Illinois featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
38
Good
Sycamore, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.80 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.45 μg/m³
0
55
155
255
425
605+
30.68 ppb
0
55
71
86
201
201+
0.37 ppb
0
36
76
186
605
1005+
4.34 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Sycamore, Illinois
Sycamore, Illinois
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AQI 33
Good
5.94μg/m³
PM2.5
27.77μg/m³
PM10
33.14ppb
O3
0.38ppb
SO2
4.64ppb
NO2
0.16ppm
CO
AQI 44
Good
7.62μg/m³
PM2.5
25.27μg/m³
PM10
29.96ppb
O3
0.41ppb
SO2
5.50ppb
NO2
0.16ppm
CO
AQI 38
Good
7.48μg/m³
PM2.5
25.23μg/m³
PM10
27.28ppb
O3
0.40ppb
SO2
5.59ppb
NO2
0.16ppm
CO
AQI 38
Good
7.20μg/m³
PM2.5
31.60μg/m³
PM10
23.35ppb
O3
0.39ppb
SO2
5.62ppb
NO2
0.16ppm
CO
AQI 38
Good
7.25μg/m³
PM2.5
29.82μg/m³
PM10
29.13ppb
O3
0.41ppb
SO2
5.46ppb
NO2
0.16ppm
CO
AQI 38
Good
6.91μg/m³
PM2.5
31.14μg/m³
PM10
28.97ppb
O3
0.41ppb
SO2
5.48ppb
NO2
0.16ppm
CO
The air quality data for Illinois, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Sycamore, Illinois are available every hour.
Sycamore, Illinois experienced its worst air quality at 06:00:00, 2026-06-08.
The best air quality in Sycamore, Illinois was observed at 01:00:00 on 2026-06-08.
The air quality in Sycamore, Illinois right now is Good, with an AQI of 38.
In Sycamore, Illinois, PM2.5 is the most frequently found pollutant.
When air quality in Sycamore, Illinois is compromised, staying indoors and wearing a mask can reduce health risks.
Sycamore, Illinois currently has a PM2.5 concentration of 6.8 μg/m3.
Sycamore, Illinois currently has a PM10 concentration of 21.449 μg/m3.
The current carbon monoxide (CO) level in Sycamore, Illinois is 0.158 ppm.
The current sulfur dioxide (SO2) concentration in Sycamore, Illinois is 0.373 ppb.
Sycamore, Illinois currently has an ozone (O3) concentration of 30.682 ppm.
The current level of nitrogen dioxide (NO2) in Sycamore, Illinois is 4.341 ppb.
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