Stay updated with real-time air quality in Rockford, 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)
82
Moderate
Rockford, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
25.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
112.99 μg/m³
0
55
155
255
425
605+
22.93 ppb
0
55
71
86
201
201+
0.57 ppb
0
36
76
186
605
1005+
7.44 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Rockford, Illinois
Rockford, Illinois
Scroll To Air Quality MapLoading...
AQI 82
Moderate
25.54μg/m³
PM2.5
115.34μg/m³
PM10
28.97ppb
O3
0.31ppb
SO2
9.65ppb
NO2
0.12ppm
CO
AQI 82
Moderate
25.51μg/m³
PM2.5
114.82μg/m³
PM10
28.85ppb
O3
0.31ppb
SO2
9.65ppb
NO2
0.12ppm
CO
AQI 79
Moderate
23.82μg/m³
PM2.5
99.60μg/m³
PM10
27.33ppb
O3
0.31ppb
SO2
9.48ppb
NO2
0.12ppm
CO
AQI 86
Moderate
28.37μg/m³
PM2.5
122.12μg/m³
PM10
23.99ppb
O3
0.30ppb
SO2
10.74ppb
NO2
0.12ppm
CO
AQI 73
Moderate
21.03μg/m³
PM2.5
75.03μg/m³
PM10
26.06ppb
O3
0.31ppb
SO2
9.12ppb
NO2
0.12ppm
CO
AQI 77
Moderate
23.38μg/m³
PM2.5
94.60μg/m³
PM10
23.84ppb
O3
0.34ppb
SO2
7.49ppb
NO2
0.14ppm
CO
Air quality and pollutant data for Illinois, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Rockford, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Rockford, Illinois was at its worst at 03:00:00 on 2025-07-21.
In the last 24 hours, the best air quality in Rockford, Illinois was observed at 06:00:00 on 2025-07-22.
As of now, the AQI in Rockford, Illinois is 84, indicating Moderate conditions.
Rockford, Illinois air has the highest levels of PM2.5.
Poor air quality in Rockford, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Rockford, Illinois are currently 27.284 μg/m3.
The PM10 concentration in Rockford, Illinois is 118.939 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Rockford, Illinois is 0.121 ppm.
Currently, Rockford, Illinois has a sulfur dioxide (SO2) concentration of 0.308 ppb.
The current ozone (O3) level in Rockford, Illinois at the moment is 26.416 ppm.
Nitrogen dioxide (NO2) level in Rockford, Illinois at the moment is 9.934 ppb.
All Rights Reserved © Ambee Inc. 2025