Saint Louis, Grand Est, France 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
Saint Louis, Grand Est, France
AQI Trends: Highest and Lowest
Same Day Analysis (6th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 25 of Good air quality, showing improvement over 2024 on the same day.
Day & Night AQI Trend: 6th Aug - 7th Aug 2026
Saint Louis, Grand Est, France
5 AM6th Aug 2026
9 PM
4 AM7th Aug 2026
48AQI
21AQI
33AQI
21AQI
In the last 24 hours,
Saint Louis's AQI reached its highest point of 48 at 2 PM during the Day, while the lowest point, 21, was recorded at 3 AM during the Night between 6th Aug and 7th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Saint Louis, Grand Est, France
24°C14/33°C
25°C15/35°C
26°C17/36°C
25°C15/34°C
24°C14/34°C
25°C17/35°C
23°C16/32°C
24°C15/35°C
22°C16/30°C
21°C14/29°C
19°C13/26°C
18°C10/27°C
18°C9/26°C
19°C10/28°C
19°C12/27°C
20°C10/30°C
23°C12/33°C
21°C14/29°C
21°C16/29°C
23°C14/33°C
27°C17/37°C
27°C19/40°C
25°C17/34°C
22°C16/29°C
24°C15/34°C
24°C18/38°C
24°C17/36°C
24°C16/31°C
23°C16/31°C
21°C13/30°C
33AQI
28AQI
33AQI
30AQI
2026 Days Vs Air Quality
Saint Louis, Grand Est, France
87%
186
13%
29
Total number of days with different AQI categories in last 219 days in 2026 (146 days remaining)
Under WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2026, 87% of 219 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Saint Louis, Grand Est, France
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
93AQI (US)
41AQI (US)
29AQI (US)
45AQI (US)
52AQI (US)
62AQI (US)
72AQI (US)
51AQI (US)
16AQI (US)
11AQI (US)
50AQI (US)
51AQI (US)
43AQI (US)
42AQI (US)
48AQI (US)
55AQI (US)
68AQI (US)
72AQI (US)
61AQI (US)
63AQI (US)
62AQI (US)
63AQI (US)
71AQI (US)
65AQI (US)
75AQI (US)
75AQI (US)
25AQI (US)
34AQI (US)
32AQI (US)
37AQI (US)
39AQI (US)
47AQI (US)
53AQI (US)
47AQI (US)
34AQI (US)
53AQI (US)
45AQI (US)
15AQI (US)
32AQI (US)
47AQI (US)
39AQI (US)
20AQI (US)
23AQI (US)
39AQI (US)
42AQI (US)
35AQI (US)
35AQI (US)
39AQI (US)
37AQI (US)
36AQI (US)
28AQI (US)
20AQI (US)
22AQI (US)
32AQI (US)
26AQI (US)
33AQI (US)
32AQI (US)
35AQI (US)
33AQI (US)
33AQI (US)
47AQI (US)
45AQI (US)
43AQI (US)
55AQI (US)
57AQI (US)
71AQI (US)
84AQI (US)
66AQI (US)
46AQI (US)
20AQI (US)
19AQI (US)
38AQI (US)
34AQI (US)
28AQI (US)
35AQI (US)
31AQI (US)
29AQI (US)
67AQI (US)
59AQI (US)
44AQI (US)
42AQI (US)
43AQI (US)
36AQI (US)
35AQI (US)
10AQI (US)
17AQI (US)
28AQI (US)
25AQI (US)
21AQI (US)
28AQI (US)
30AQI (US)
27AQI (US)
27AQI (US)
23AQI (US)
28AQI (US)
24AQI (US)
27AQI (US)
26AQI (US)
26AQI (US)
28AQI (US)
35AQI (US)
27AQI (US)
17AQI (US)
21AQI (US)
39AQI (US)
32AQI (US)
26AQI (US)
26AQI (US)
22AQI (US)
21AQI (US)
21AQI (US)
21AQI (US)
26AQI (US)
24AQI (US)
26AQI (US)
22AQI (US)
21AQI (US)
21AQI (US)
25AQI (US)
23AQI (US)
20AQI (US)
24AQI (US)
29AQI (US)
26AQI (US)
20AQI (US)
24AQI (US)
27AQI (US)
24AQI (US)
19AQI (US)
22AQI (US)
20AQI (US)
26AQI (US)
36AQI (US)
37AQI (US)
33AQI (US)
33AQI (US)
33AQI (US)
34AQI (US)
36AQI (US)
38AQI (US)
51AQI (US)
42AQI (US)
34AQI (US)
28AQI (US)
27AQI (US)
27AQI (US)
25AQI (US)
26AQI (US)
26AQI (US)
27AQI (US)
21AQI (US)
20AQI (US)
20AQI (US)
22AQI (US)
21AQI (US)
22AQI (US)
22AQI (US)
22AQI (US)
21AQI (US)
22AQI (US)
23AQI (US)
22AQI (US)
22AQI (US)
25AQI (US)
26AQI (US)
25AQI (US)
24AQI (US)
23AQI (US)
21AQI (US)
22AQI (US)
24AQI (US)
23AQI (US)
26AQI (US)
30AQI (US)
29AQI (US)
26AQI (US)
35AQI (US)
23AQI (US)
24AQI (US)
19AQI (US)
24AQI (US)
23AQI (US)
21AQI (US)
21AQI (US)
21AQI (US)
25AQI (US)
25AQI (US)
28AQI (US)
28AQI (US)
24AQI (US)
25AQI (US)
28AQI (US)
25AQI (US)
25AQI (US)
24AQI (US)
27AQI (US)
42AQI (US)
26AQI (US)
25AQI (US)
23AQI (US)
22AQI (US)
23AQI (US)
25AQI (US)
51AQI (US)
32AQI (US)
23AQI (US)
35AQI (US)
50AQI (US)
61AQI (US)
44AQI (US)
42AQI (US)
45AQI (US)
45AQI (US)
29AQI (US)
25AQI (US)
52AQI (US)
35AQI (US)
40AQI (US)
26AQI (US)
29AQI (US)
24AQI (US)
28AQI (US)
38AQI (US)
No. of days
202634AQI (US)
Highest AQI (US) recorded in
January52AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202543AQI (US)
Highest AQI (US) recorded in
December63AQI (US)
Lowest AQI (US) recorded in
September22AQI (US)
202434AQI (US)
Highest AQI (US) recorded in
January51AQI (US)
Lowest AQI (US) recorded in
September24AQI (US)
202337AQI (US)
Highest AQI (US) recorded in
February55AQI (US)
Lowest AQI (US) recorded in
November22AQI (US)
202242AQI (US)
Highest AQI (US) recorded in
March75AQI (US)
Lowest AQI (US) recorded in
November23AQI (US)
202140AQI (US)
Highest AQI (US) recorded in
November58AQI (US)
Lowest AQI (US) recorded in
May24AQI (US)
202032AQI (US)
Highest AQI (US) recorded in
November47AQI (US)
Lowest AQI (US) recorded in
October22AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Saint Louis's annual 2026 AQI (US) (34) shows an average percentage change of -9.4% (improved AQI (US)) compared to previous years: 2020 (32), 2021 (40), 2022 (42), 2023 (37), 2024 (34), 2025 (43).