AQI

McLean Air Quality Index & Realtime Air Pollution

Live AQI
61(AQI-US)
Air Quality is
Moderate
PM2.5 :4.4µg/m³
PM10 :5µg/m³
Good
Moderate
Poor
Unhealthy
Severe
Hazardous
050100150200300301+
Moderate air quality mascot

Primary Air Pollutants McLean (Illinois)

PM2.54µg/m³
PM2.5
Fine particles
PM105µg/m³
PM10
Coarse particles
SO₂1µg/m³
SO₂
Sulphur dioxide
CO135µg/m³
CO
Carbon monoxide
NO₂3µg/m³
NO₂
Nitrogen dioxide
O₃113µg/m³
O₃
Ozone

Hourly forecast McLean (Illinois)

Now26°
Clear sky
20:0024°
Clear sky
21:0022°
Clear sky
22:0021°
Clear sky
23:0019°
Clear sky
00:0019°
Clear sky
01:0018°
Clear sky
02:0017°
Clear sky
03:0017°
Clear sky
04:0016°
Clear sky
05:0015°
Clear sky
06:0015°
Clear sky
07:0018°
Clear sky
08:0022°
Clear sky
09:0024°
Clear sky
10:0026°
Clear sky
11:0027°
Clear sky
12:0028°
Overcast
13:0029°
Overcast
14:0029°
Overcast
15:0029°
Overcast
16:0029°
Overcast
17:0029°
Overcast
18:0028°
Overcast

Health Recommendations for McLean Residents

Based on current air quality: Moderate · AQI 61

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

UV Index

0.3

Low

Safe to be outside. Minimal UV risk.

Wind

13.1 km/h

Light breeze — leaves rustling gently.

AQI Graph

Historical AQI Data McLean (Illinois)

21
Min. AQIat 9:00 AM on 3rd Jun
65
Max. AQIat 8:00 PM on 3rd Jun
03-06-2026Time04-06-2026

United States Major Cities AQI Overview


Most Polluted Cities by AQI United States

119
Poor3x above Standard
93
Moderate2x above Standard
81
Moderate2x above Standard
79
Moderate1x above Standard
75
Moderate1x above Standard
75
Moderate3x above Standard
75
Moderate3x above Standard
73
Moderate2x above Standard
72
Moderate1x above Standard
67
Moderate1x above Standard
Last Updated: 03 Jun 2026, 22:43

Health Advice For People Living in McLean

0.2
Cigarettes
per day
Weekly1.4 Cigarettes
Monthly6 Cigarettes

Breathing the air in this location is equivalent to smoking 0.2 cigarettes a day.

Disclaimer: This cigarette-equivalent estimate is calculated using the average PM2.5 concentration from the past 24 hours, assuming constant exposure throughout that period.
Solutions for McLean Current AQI (US)
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

McLean · Current air quality: Moderate · AQI 61

Mild Trigger Risk

Headaches

Risk of Headaches symptoms is Mild when AQI of McLean is Moderate (51-100).

Common signs

Early signs may include: Pressure or tightness around the forehead and temples, Sensitivity to light or smell, Fatigue or difficulty concentrating.

Do’s :
  • Favor indoor, filtered indoor air when the AQI is worse.
  • Hydrate and take breaks from screens or bright light if you are migraine-prone.
  • If you Try prescribed migraine meds, Have them accessible.
Don’ts :
  • Do not do intense outdoor exercise during elevated AQI periods.
  • Avoid ignore worsening effects that feel unusual for you.

Disclaimer: The health risks mentioned above are precautionary recommendations based on current AQI levels. While you may not experience immediate effects, prolonged exposure to air pollution can lead to these health issues over time. This is not medical advice. Please consult a clinician if you experience severe, unusual, or worsening symptoms.

McLean's Nearby Cities AQI

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Population: -
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13.Cook
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14.Lake
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Population: 714,342
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Air Quality FAQs at McLean, Illinois

The current real-time AQI (US) level in McLean, Illinois is 61 (Moderate). This was last updated recently.

The best AQI (US) level was generally lower during the early afternoon in the last 24 hours.

The worst AQI (US) level typically peaks during early morning or late evening hours due to temperature inversion.

The AQI (US) levels in McLean, Illinois have been fluctuating throughout the last 24 hours depending on traffic and weather conditions.

Current AQI (US) levels are moderate for everyone. It's advised to adjust your outdoor activities based on personal sensitivity.