McLeansboro, 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
McLeansboro, Illinois, United States
AQI Trends: Highest and Lowest
Same Day Analysis (4th August):
On this day, AQI across the 2 years varied significantly: 2026 ranks 1st highest AQI at 42 of Good air quality on the same day.
Day & Night AQI Trend: 3rd Aug - 4th Aug 2026
McLeansboro, Illinois, United States
5 AM3rd Aug 2026
8 PM
4 AM4th Aug 2026
52AQI
46AQI
48AQI
38AQI
In the last 24 hours,
McLeansboro's AQI reached its highest point of 52 at 3 PM during the Day, while the lowest point, 38, was recorded at 2 AM during the Night between 3rd Aug and 4th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
McLeansboro, Illinois, United States
26°C21/32°C
26°C21/31°C
26°C21/32°C
26°C20/35°C
26°C22/31°C
24°C21/30°C
26°C20/32°C
27°C20/33°C
27°C20/34°C
27°C21/33°C
28°C22/34°C
28°C23/32°C
29°C23/35°C
27°C24/34°C
28°C22/36°C
29°C24/37°C
24°C19/29°C
22°C15/28°C
22°C16/30°C
24°C19/30°C
28°C22/37°C
30°C21/37°C
30°C24/37°C
25°C17/32°C
25°C17/33°C
23°C17/31°C
23°C20/25°C
23°C19/29°C
25°C17/32°C
25°C17/33°C
38AQI
35AQI
36AQI
34AQI
2026 Days Vs Air Quality
McLeansboro, Illinois, United States
94%
201
6%
12
Total number of days with different AQI categories in last 216 days in 2026 (149 days remaining)
Under WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2026, 94% of 216 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
McLeansboro, Illinois, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
48AQI (US)
46AQI (US)
50AQI (US)
53AQI (US)
44AQI (US)
44AQI (US)
47AQI (US)
41AQI (US)
23AQI (US)
22AQI (US)
16AQI (US)
21AQI (US)
34AQI (US)
17AQI (US)
12AQI (US)
20AQI (US)
15AQI (US)
16AQI (US)
17AQI (US)
28AQI (US)
38AQI (US)
43AQI (US)
38AQI (US)
27AQI (US)
33AQI (US)
34AQI (US)
26AQI (US)
28AQI (US)
37AQI (US)
53AQI (US)
39AQI (US)
37AQI (US)
39AQI (US)
44AQI (US)
32AQI (US)
41AQI (US)
36AQI (US)
35AQI (US)
44AQI (US)
42AQI (US)
40AQI (US)
25AQI (US)
24AQI (US)
30AQI (US)
36AQI (US)
34AQI (US)
33AQI (US)
33AQI (US)
36AQI (US)
36AQI (US)
29AQI (US)
35AQI (US)
34AQI (US)
29AQI (US)
31AQI (US)
37AQI (US)
33AQI (US)
26AQI (US)
25AQI (US)
29AQI (US)
52AQI (US)
28AQI (US)
36AQI (US)
32AQI (US)
17AQI (US)
32AQI (US)
35AQI (US)
26AQI (US)
27AQI (US)
34AQI (US)
37AQI (US)
36AQI (US)
24AQI (US)
19AQI (US)
36AQI (US)
34AQI (US)
26AQI (US)
33AQI (US)
42AQI (US)
43AQI (US)
35AQI (US)
34AQI (US)
24AQI (US)
29AQI (US)
37AQI (US)
26AQI (US)
24AQI (US)
18AQI (US)
23AQI (US)
25AQI (US)
23AQI (US)
21AQI (US)
23AQI (US)
26AQI (US)
30AQI (US)
30AQI (US)
24AQI (US)
31AQI (US)
31AQI (US)
33AQI (US)
29AQI (US)
24AQI (US)
21AQI (US)
24AQI (US)
28AQI (US)
23AQI (US)
25AQI (US)
30AQI (US)
23AQI (US)
19AQI (US)
25AQI (US)
23AQI (US)
16AQI (US)
23AQI (US)
19AQI (US)
20AQI (US)
25AQI (US)
29AQI (US)
19AQI (US)
15AQI (US)
18AQI (US)
33AQI (US)
33AQI (US)
27AQI (US)
20AQI (US)
24AQI (US)
23AQI (US)
18AQI (US)
25AQI (US)
30AQI (US)
19AQI (US)
37AQI (US)
47AQI (US)
51AQI (US)
56AQI (US)
52AQI (US)
51AQI (US)
36AQI (US)
42AQI (US)
50AQI (US)
46AQI (US)
36AQI (US)
24AQI (US)
17AQI (US)
17AQI (US)
19AQI (US)
21AQI (US)
18AQI (US)
23AQI (US)
18AQI (US)
18AQI (US)
26AQI (US)
26AQI (US)
23AQI (US)
29AQI (US)
20AQI (US)
22AQI (US)
20AQI (US)
19AQI (US)
15AQI (US)
16AQI (US)
16AQI (US)
13AQI (US)
16AQI (US)
23AQI (US)
20AQI (US)
18AQI (US)
16AQI (US)
19AQI (US)
19AQI (US)
14AQI (US)
14AQI (US)
13AQI (US)
16AQI (US)
23AQI (US)
23AQI (US)
31AQI (US)
53AQI (US)
48AQI (US)
34AQI (US)
23AQI (US)
17AQI (US)
19AQI (US)
22AQI (US)
26AQI (US)
32AQI (US)
23AQI (US)
15AQI (US)
20AQI (US)
19AQI (US)
20AQI (US)
21AQI (US)
20AQI (US)
12AQI (US)
36AQI (US)
47AQI (US)
46AQI (US)
81AQI (US)
51AQI (US)
45AQI (US)
34AQI (US)
32AQI (US)
43AQI (US)
47AQI (US)
51AQI (US)
56AQI (US)
46AQI (US)
43AQI (US)
38AQI (US)
36AQI (US)
38AQI (US)
48AQI (US)
42AQI (US)
33AQI (US)
34AQI (US)
31AQI (US)
25AQI (US)
31AQI (US)
21AQI (US)
34AQI (US)
41AQI (US)
No. of days
202630AQI (US)
Highest AQI (US) recorded in
August41AQI (US)
Lowest AQI (US) recorded in
June21AQI (US)
202538AQI (US)
Highest AQI (US) recorded in
September44AQI (US)
Lowest AQI (US) recorded in
May26AQI (US)
Most & Least Polluted Years Over the Last 2 Years
McLeansboro's annual 2026 AQI (US) (30) shows an average percentage change of -21.05% (improved AQI (US)) compared to previous years: 2025 (38).