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Lake Forest, IL Air Quality

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Air quality in Lake Forest

The US Air Quality Index (EPA) grades air from 0 to 500 using fine particles (PM2.5/PM10), ozone and nitrogen dioxide. 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and anything higher affects everyone.

US AQI · EPA
22
Good
PM2.5
5.3 µg/m³
WHO guideline 15
PM10
5.5 µg/m³
WHO guideline 45
NO₂ · O₃
14 · 37
µg/m³

Hour by hour (12h)

US EPA AQI
4:00 AM 💨 PM2.5 5.3 µg/m³
22Good
5:00 AM 💨 PM2.5 5.4 µg/m³
23Good
6:00 AM 💨 PM2.5 5.4 µg/m³
23Good
7:00 AM 💨 PM2.5 5.4 µg/m³
23Good
8:00 AM 💨 PM2.5 5.7 µg/m³
24Good
9:00 AM 💨 PM2.5 5.7 µg/m³
26Good
10:00 AM 💨 PM2.5 5.5 µg/m³
32Good
11:00 AM 💨 PM2.5 5.7 µg/m³
36Good
12:00 PM 💨 PM2.5 6.1 µg/m³
40Good
1:00 PM 💨 PM2.5 6.4 µg/m³
43Good
2:00 PM 💨 PM2.5 6.6 µg/m³
45Good
3:00 PM 💨 PM2.5 6.7 µg/m³
46Good

Next few days

daily max · US EPA AQI
Mon 💨 Moderate · UV High
57
Tue 💨 Moderate · UV High
100
Wed 💨 Moderate · UV High
60
Thu 💨 Moderate · UV High
51
Fri 💨 Good · UV High
45
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Updated: 4:17 AM