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Illinois Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in United States

Last Updated: 2025-10-14 09:58:17 AM (Local Time)

location image
Live AQI
65(AQI-US)
Air Quality is
Moderate
pm10 :  42 µg/m³
PM2.5 :  17 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Illinois
clear

17 °C

Clear
Humidity
Humidity71 %

Wind Speed
Wind Speed9 km/h

UV Index
UV Index0
Last Updated: 2025-10-14 09:58:17 AM (Local Time)


Map

Illinois

Major Air Pollutants

Illinois

AQI Graph

Historical Air Quality Data

Illinois

Illinois
AQI
.
12-10-2025Time13-10-2025
45
Min.at 3:04 AM on 13th Oct
66
Max.at 9:04 AM on 13th Oct

Download 2024 Annual Data

World Air Quality Report

Globe

Illinois's Cities

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Moderate
63
16
38
22
80
Moderate
97
34
93
26
63
Moderate
53
10
32
21
74
Moderate
64
16
77
22
99
Moderate
55
11
39
18
84
Good
44
8
41
18
100
Moderate
55
11
22
19
100
Moderate
53
10
28
17
75
Moderate
68
18
64
20
100
Moderate
74
21
29
22
88
Moderate
80
25
34
24
86
Moderate
58
13
24
22
72
Moderate
60
14
23
20
88
Moderate
73
21
39
26
70
Moderate
72
20
95
28
79
Moderate
58
13
25
20
80
Moderate
84
27
29
24
78
Moderate
55
11
21
19
99
Moderate
62
15
23
18
82
Moderate
90
30
84
26
68
Moderate
70
20
80
22
94
Moderate
59
14
27
21
82
Moderate
60
14
30
20
84
Moderate
82
26
106
23
80
Moderate
75
22
36
20
89
Moderate
56
12
31
17
78
Moderate
53
10
41
22
95
Moderate
55
11
34
17
88
Moderate
66
17
26
22
82
Moderate
53
10
20
20
85
Moderate
75
22
31
19
77
Moderate
66
17
40
22
86
Moderate
60
14
46
15
80
Moderate
54
11
39
24
86
Moderate
53
10
23
18
100
Moderate
53
10
21
19
72
Moderate
66
17
29
22
90
Moderate
63
16
55
23
88
Moderate
56
12
38
22
75
Moderate
62
15
44
18
91
Good
44
8
42
19
100
Moderate
55
11
25
17
95
Poor
107
38
76
24
64

United States's Metro Cities

Air Quality Index

Health Advice For People Living In

Illinois

0Cigarettes per day

Weekly 0 Cigarettes
Monthly 0 Cigarettes

Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.

Source:

Berkeley Earth

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

Solutions for Current AQI

  • Air Purifier
    Air PurifierTurn On
  • Car Filter
    Car FilterMust
  • N95 Mask
    N95 MaskMust
  • Stay Indoor
    Stay IndoorMust


Must turn on the air purifier to enjoy fresh air.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Illinois

  • asthma due to air pollution in IllinoisAsthma
  • heart due to air pollution in IllinoisHeart Issues
  • allergy due to air pollution in IllinoisAllergies
  • sinus due to air pollution in IllinoisSinus
  • flu due to air pollution in IllinoisCold/Flu
  • copd due to air pollution in IllinoisChronic (COPD)
asthma due to air pollution in Illinois

Mild Chances of Asthma

Asthma

Risk of Asthma symptoms is Mild when AQI is Moderate (50-150)

Moderate symptoms including frequent wheezing, noticeable shortness of breath, chest tightness, and persistent cough.

Do's :

  • Limit outdoor activities when AQI is poor.

  • Clean indoor air with an air purifier to reduce exposure.

  • Soothe the respiratory tract with herbal teas or warm water to help alleviate symptoms.

Don'ts :

  • Exercise outdoors without a mask.

  • Stay in smoky areas with strong fumes.

Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

Most Polluted Cities 2025

United States

Analyze the real-time most air polluted cities in the country.

Illinois's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
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WidgetsWidgets
aqi air quality app for Illinois
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Empower Your Decisions with Reliable Data

Your area’s real-time data with detailed parameters.

Your area’s real-time data with detailed parameters.


Personalized health advice as per current AQI.

Personalized health advice as per current AQI.


Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.


Connect and control your air quality devices.

Connect and control your air quality devices.


Air Quality FAQs

at Illinois

Frequently Asked Questions About Air Quality

What is the current AQI level in Illinois?

The current real-time AQI level in Illinois is 65 (Moderate). This was last updated 2025-10-14 09:58:17 AM (Local Time).

When was the best AQI level in Illinois in the last 24 hours?

The best AQI level was 45 (Good) at 3:04 AM, Oct 13, 2025 (Local Time) during the last 24 hours.

When was the worst AQI level in Illinois in the last 24 hours?

The worst AQI level was 66 (Moderate) at 9:04 AM, Oct 13, 2025 (Local Time) during the last 24 hours.

What is the current trend of AQI levels in Illinois during last 24 hours?

The AQI levels in Illinois have been fluctuating throughout the last 24 hours. The levels have increased by highest 66 at 9:04 AM, Oct 13, 2025 (Local Time), lowest 45 at 3:04 AM, Oct 13, 2025 (Local Time).

What actions are recommended as per the current AQI level in Illinois?

Current AQI levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.