Evergreen Park, Illinois, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Evergreen Park, Illinois, United States
AQI Trends: Highest and Lowest
Same Day Analysis (9th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 45 of Good air quality, showing improvement over 2023 on the same day.
Day & Night AQI Trend: 8th Aug - 9th Aug 2026
Evergreen Park, Illinois, United States
5 AM8th Aug 2026
8 PM
4 AM9th Aug 2026
50AQI
42AQI
52AQI
44AQI
In the last 24 hours,
Evergreen Park's AQI reached its highest point of 52 at 4 AM during the Night, while the lowest point, 42, was recorded at 6 PM during the Day between 8th Aug and 9th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Evergreen Park, Illinois, United States
24°C20/31°C
26°C20/33°C
28°C19/36°C
30°C22/40°C
30°C24/39°C
28°C23/35°C
28°C24/34°C
27°C23/35°C
23°C20/30°C
24°C18/32°C
26°C20/34°C
20°C15/26°C
20°C14/26°C
22°C15/28°C
22°C17/31°C
27°C22/36°C
26°C23/35°C
22°C18/26°C
22°C17/28°C
25°C16/34°C
24°C19/32°C
21°C20/23°C
21°C19/26°C
22°C18/29°C
25°C18/33°C
24°C21/31°C
23°C19/26°C
25°C20/31°C
26°C21/34°C
24°C18/33°C
62AQI
48AQI
61AQI
50AQI
2026 Days Vs Air Quality
Evergreen Park, Illinois, United States
91%
199
7%
15
1%
3
0.4%
1
Total number of days with different AQI categories in last 221 days in 2026 (144 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2026, 91% of 221 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Evergreen Park, Illinois, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
20AQI (US)
30AQI (US)
33AQI (US)
34AQI (US)
49AQI (US)
71AQI (US)
53AQI (US)
46AQI (US)
23AQI (US)
29AQI (US)
23AQI (US)
21AQI (US)
26AQI (US)
13AQI (US)
15AQI (US)
22AQI (US)
18AQI (US)
19AQI (US)
20AQI (US)
21AQI (US)
37AQI (US)
59AQI (US)
58AQI (US)
48AQI (US)
49AQI (US)
46AQI (US)
36AQI (US)
42AQI (US)
50AQI (US)
58AQI (US)
42AQI (US)
45AQI (US)
51AQI (US)
47AQI (US)
44AQI (US)
51AQI (US)
46AQI (US)
39AQI (US)
41AQI (US)
48AQI (US)
47AQI (US)
39AQI (US)
39AQI (US)
50AQI (US)
49AQI (US)
46AQI (US)
45AQI (US)
48AQI (US)
44AQI (US)
42AQI (US)
37AQI (US)
35AQI (US)
36AQI (US)
38AQI (US)
45AQI (US)
43AQI (US)
34AQI (US)
34AQI (US)
33AQI (US)
39AQI (US)
56AQI (US)
43AQI (US)
46AQI (US)
46AQI (US)
40AQI (US)
36AQI (US)
40AQI (US)
36AQI (US)
35AQI (US)
41AQI (US)
38AQI (US)
40AQI (US)
36AQI (US)
31AQI (US)
37AQI (US)
33AQI (US)
30AQI (US)
40AQI (US)
44AQI (US)
40AQI (US)
34AQI (US)
40AQI (US)
35AQI (US)
32AQI (US)
32AQI (US)
29AQI (US)
29AQI (US)
30AQI (US)
28AQI (US)
28AQI (US)
29AQI (US)
29AQI (US)
27AQI (US)
31AQI (US)
30AQI (US)
31AQI (US)
28AQI (US)
35AQI (US)
30AQI (US)
33AQI (US)
29AQI (US)
29AQI (US)
32AQI (US)
32AQI (US)
33AQI (US)
29AQI (US)
28AQI (US)
32AQI (US)
27AQI (US)
26AQI (US)
25AQI (US)
27AQI (US)
28AQI (US)
33AQI (US)
25AQI (US)
25AQI (US)
25AQI (US)
27AQI (US)
24AQI (US)
24AQI (US)
23AQI (US)
36AQI (US)
38AQI (US)
27AQI (US)
26AQI (US)
34AQI (US)
30AQI (US)
28AQI (US)
26AQI (US)
28AQI (US)
24AQI (US)
46AQI (US)
51AQI (US)
57AQI (US)
57AQI (US)
55AQI (US)
50AQI (US)
43AQI (US)
46AQI (US)
50AQI (US)
47AQI (US)
45AQI (US)
32AQI (US)
28AQI (US)
15AQI (US)
22AQI (US)
28AQI (US)
27AQI (US)
29AQI (US)
23AQI (US)
22AQI (US)
25AQI (US)
32AQI (US)
22AQI (US)
25AQI (US)
26AQI (US)
24AQI (US)
23AQI (US)
25AQI (US)
23AQI (US)
23AQI (US)
21AQI (US)
24AQI (US)
25AQI (US)
25AQI (US)
25AQI (US)
22AQI (US)
21AQI (US)
26AQI (US)
22AQI (US)
18AQI (US)
24AQI (US)
24AQI (US)
25AQI (US)
31AQI (US)
28AQI (US)
26AQI (US)
36AQI (US)
32AQI (US)
25AQI (US)
24AQI (US)
32AQI (US)
44AQI (US)
38AQI (US)
37AQI (US)
37AQI (US)
28AQI (US)
27AQI (US)
39AQI (US)
41AQI (US)
43AQI (US)
36AQI (US)
50AQI (US)
104AQI (US)
157AQI (US)
61AQI (US)
122AQI (US)
116AQI (US)
57AQI (US)
31AQI (US)
40AQI (US)
41AQI (US)
45AQI (US)
50AQI (US)
51AQI (US)
45AQI (US)
34AQI (US)
42AQI (US)
43AQI (US)
43AQI (US)
46AQI (US)
41AQI (US)
47AQI (US)
49AQI (US)
50AQI (US)
45AQI (US)
46AQI (US)
45AQI (US)
36AQI (US)
43AQI (US)
37AQI (US)
29AQI (US)
36AQI (US)
25AQI (US)
51AQI (US)
46AQI (US)
No. of days
202637AQI (US)
Highest AQI (US) recorded in
July51AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202538AQI (US)
Highest AQI (US) recorded in
June50AQI (US)
Lowest AQI (US) recorded in
May26AQI (US)
202435AQI (US)
Highest AQI (US) recorded in
July45AQI (US)
Lowest AQI (US) recorded in
September29AQI (US)
202340AQI (US)
Highest AQI (US) recorded in
June66AQI (US)
Lowest AQI (US) recorded in
February29AQI (US)
202236AQI (US)
Highest AQI (US) recorded in
July47AQI (US)
Lowest AQI (US) recorded in
November30AQI (US)
202140AQI (US)
Highest AQI (US) recorded in
July53AQI (US)
Lowest AQI (US) recorded in
November32AQI (US)
202038AQI (US)
Highest AQI (US) recorded in
May51AQI (US)
Lowest AQI (US) recorded in
November25AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Evergreen Park's annual 2026 AQI (US) (37) shows an average percentage change of -1.9% (improved AQI (US)) compared to previous years: 2020 (38), 2021 (40), 2022 (36), 2023 (40), 2024 (35), 2025 (38).