Maryville, 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
Maryville, Illinois, United States
AQI Trends: Highest and Lowest
Same Day Analysis (14th August):
On this day, AQI across the 3 years varied significantly: 2026 ranks 2nd highest AQI at 48 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 14th Aug - 15th Aug 2026
Maryville, Illinois, United States
6 AM14th Aug 2026
8 PM
5 AM15th Aug 2026
51AQI
44AQI
55AQI
52AQI
In the last 24 hours,
Maryville's AQI reached its highest point of 55 at 12 AM during the Night, while the lowest point, 44, was recorded at 4 PM during the Day between 14th Aug and 15th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Maryville, Illinois, United States
29°C23/35°C
30°C24/35°C
29°C25/33°C
30°C23/37°C
31°C25/38°C
24°C19/28°C
23°C18/30°C
23°C17/30°C
27°C21/34°C
31°C25/40°C
33°C25/40°C
30°C25/37°C
27°C20/34°C
27°C20/35°C
24°C22/27°C
22°C20/24°C
23°C20/29°C
24°C18/30°C
26°C20/33°C
27°C20/35°C
23°C21/28°C
26°C20/33°C
27°C22/33°C
28°C22/35°C
30°C24/37°C
31°C25/38°C
30°C26/37°C
30°C24/38°C
30°C26/37°C
31°C26/38°C
50AQI
50AQI
49AQI
49AQI
2026 Days Vs Air Quality
Maryville, Illinois, United States
91%
203
9%
19
0.4%
1
Total number of days with different AQI categories in last 227 days in 2026 (138 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2026, 91% of 227 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
Maryville, Illinois, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
53AQI (US)
49AQI (US)
38AQI (US)
58AQI (US)
42AQI (US)
42AQI (US)
52AQI (US)
40AQI (US)
23AQI (US)
25AQI (US)
14AQI (US)
29AQI (US)
30AQI (US)
12AQI (US)
19AQI (US)
20AQI (US)
18AQI (US)
18AQI (US)
17AQI (US)
34AQI (US)
40AQI (US)
49AQI (US)
53AQI (US)
31AQI (US)
38AQI (US)
35AQI (US)
26AQI (US)
30AQI (US)
42AQI (US)
57AQI (US)
32AQI (US)
38AQI (US)
48AQI (US)
44AQI (US)
35AQI (US)
48AQI (US)
38AQI (US)
29AQI (US)
26AQI (US)
45AQI (US)
39AQI (US)
29AQI (US)
52AQI (US)
39AQI (US)
44AQI (US)
29AQI (US)
41AQI (US)
37AQI (US)
43AQI (US)
41AQI (US)
28AQI (US)
23AQI (US)
22AQI (US)
29AQI (US)
47AQI (US)
45AQI (US)
35AQI (US)
45AQI (US)
31AQI (US)
29AQI (US)
38AQI (US)
35AQI (US)
38AQI (US)
28AQI (US)
22AQI (US)
32AQI (US)
36AQI (US)
34AQI (US)
30AQI (US)
35AQI (US)
28AQI (US)
33AQI (US)
24AQI (US)
27AQI (US)
28AQI (US)
30AQI (US)
24AQI (US)
52AQI (US)
55AQI (US)
41AQI (US)
44AQI (US)
31AQI (US)
30AQI (US)
49AQI (US)
53AQI (US)
26AQI (US)
19AQI (US)
23AQI (US)
42AQI (US)
38AQI (US)
26AQI (US)
22AQI (US)
22AQI (US)
29AQI (US)
28AQI (US)
29AQI (US)
27AQI (US)
46AQI (US)
42AQI (US)
32AQI (US)
28AQI (US)
36AQI (US)
28AQI (US)
34AQI (US)
30AQI (US)
21AQI (US)
22AQI (US)
20AQI (US)
18AQI (US)
26AQI (US)
43AQI (US)
21AQI (US)
17AQI (US)
24AQI (US)
24AQI (US)
21AQI (US)
20AQI (US)
27AQI (US)
21AQI (US)
18AQI (US)
28AQI (US)
39AQI (US)
32AQI (US)
21AQI (US)
26AQI (US)
28AQI (US)
24AQI (US)
22AQI (US)
33AQI (US)
46AQI (US)
26AQI (US)
45AQI (US)
48AQI (US)
55AQI (US)
51AQI (US)
48AQI (US)
44AQI (US)
40AQI (US)
39AQI (US)
48AQI (US)
39AQI (US)
38AQI (US)
24AQI (US)
17AQI (US)
27AQI (US)
28AQI (US)
24AQI (US)
20AQI (US)
20AQI (US)
20AQI (US)
27AQI (US)
36AQI (US)
32AQI (US)
22AQI (US)
28AQI (US)
21AQI (US)
22AQI (US)
28AQI (US)
20AQI (US)
14AQI (US)
19AQI (US)
16AQI (US)
16AQI (US)
20AQI (US)
35AQI (US)
20AQI (US)
18AQI (US)
19AQI (US)
20AQI (US)
17AQI (US)
16AQI (US)
24AQI (US)
18AQI (US)
16AQI (US)
20AQI (US)
29AQI (US)
34AQI (US)
59AQI (US)
49AQI (US)
37AQI (US)
25AQI (US)
24AQI (US)
27AQI (US)
22AQI (US)
22AQI (US)
32AQI (US)
33AQI (US)
27AQI (US)
21AQI (US)
18AQI (US)
26AQI (US)
27AQI (US)
29AQI (US)
23AQI (US)
43AQI (US)
49AQI (US)
53AQI (US)
114AQI (US)
55AQI (US)
46AQI (US)
40AQI (US)
40AQI (US)
48AQI (US)
53AQI (US)
55AQI (US)
54AQI (US)
43AQI (US)
44AQI (US)
46AQI (US)
42AQI (US)
44AQI (US)
48AQI (US)
51AQI (US)
51AQI (US)
39AQI (US)
47AQI (US)
43AQI (US)
48AQI (US)
50AQI (US)
45AQI (US)
48AQI (US)
48AQI (US)
48AQI (US)
34AQI (US)
38AQI (US)
34AQI (US)
27AQI (US)
33AQI (US)
24AQI (US)
40AQI (US)
47AQI (US)
No. of days
202634AQI (US)
Highest AQI (US) recorded in
August47AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202539AQI (US)
Highest AQI (US) recorded in
October48AQI (US)
Lowest AQI (US) recorded in
January27AQI (US)
202436AQI (US)
Highest AQI (US) recorded in
October49AQI (US)
Lowest AQI (US) recorded in
November26AQI (US)
202337AQI (US)
Highest AQI (US) recorded in
November40AQI (US)
Lowest AQI (US) recorded in
December36AQI (US)
202228AQI (US)
Highest AQI (US) recorded in
March29AQI (US)
Lowest AQI (US) recorded in
February19AQI (US)
202126AQI (US)
Highest AQI (US) recorded in
April29AQI (US)
Lowest AQI (US) recorded in
November17AQI (US)
202025AQI (US)
Highest AQI (US) recorded in
June31AQI (US)
Lowest AQI (US) recorded in
October18AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Maryville's annual 2026 AQI (US) (34) shows an average percentage change of 10.2% (worsened AQI (US)) compared to previous years: 2020 (25), 2021 (26), 2022 (28), 2023 (37), 2024 (36), 2025 (39).