Air quality in Saint-Louis

Air quality index (AQI⁺) and PM2.5 air pollution in Saint-Louis • 2 Followers • 17:00, Apr 18 Local time

58*

US AQI⁺

Moderate

face expression based on aqi value

Main pollutant:

PM2.5

12.9 µg/m³

weather condition icon

23°

wind direction icon

6 km/h

weather humid icon

56 %

Hourly forecast

Saint-Louis air quality index (AQI⁺) forecast

Now

58

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 201 degree

6

km/h

Humidity icon

56%

20:00

58

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 199 degree

5

km/h

Humidity icon

63%

21:00

58

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 158 degree

3

km/h

Humidity icon

74%

22:00

58

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 124 degree

1

km/h

Humidity icon

79%

23:00

60

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 231 degree

1

km/h

Humidity icon

79%

Sun

00:00

60

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 113 degree

3

km/h

Humidity icon

80%

01:00

61

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 96 degree

4

km/h

Humidity icon

81%

02:00

63

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 95 degree

3

km/h

Humidity icon

74%

03:00

64

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 65 degree

3

km/h

Humidity icon

69%

04:00

64

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 51 degree

6

km/h

Humidity icon

71%

05:00

66

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 55 degree

7

km/h

Humidity icon

70%

06:00

66

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 51 degree

7

km/h

Humidity icon

71%

07:00

66

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 47 degree

7

km/h

Humidity icon

71%

08:00

64

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 44 degree

6

km/h

Humidity icon

67%

09:00

64

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 14 degree

3

km/h

Humidity icon

62%

10:00

64

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 296 degree

5

km/h

Humidity icon

52%

11:00

59

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 293 degree

7

km/h

Humidity icon

43%

12:00

59

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 286 degree

10

km/h

Humidity icon

37%

13:00

59

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 277 degree

14

km/h

Humidity icon

39%

14:00

56

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 283 degree

19

km/h

Humidity icon

35%

15:00

56

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 290 degree

20

km/h

Humidity icon

31%

16:00

56

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 294 degree

21

km/h

Humidity icon

28%

17:00

53

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 302 degree

22

km/h

Humidity icon

29%

18:00

53

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 309 degree

22

km/h

Humidity icon

31%

19:00

53

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 311 degree

21

km/h

Humidity icon

36%

20:00

42

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 310 degree

18

km/h

Humidity icon

43%

21:00

42

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 312 degree

11

km/h

Humidity icon

51%

22:00

42

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 302 degree

6

km/h

Humidity icon

55%

23:00

34

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 294 degree

5

km/h

Humidity icon

59%

Mon

00:00

34

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 345 degree

5

km/h

Humidity icon

61%

01:00

34

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 9 degree

5

km/h

Humidity icon

62%

02:00

35

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 21 degree

4

km/h

Humidity icon

62%

03:00

35

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 17 degree

4

km/h

Humidity icon

61%

04:00

35

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 17 degree

3

km/h

Humidity icon

60%

05:00

34

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 25 degree

4

km/h

Humidity icon

59%

06:00

34

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 25 degree

5

km/h

Humidity icon

60%

07:00

34

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 36 degree

6

km/h

Humidity icon

63%

08:00

34

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 43 degree

6

km/h

Humidity icon

60%

09:00

34

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 20 degree

3

km/h

Humidity icon

52%

10:00

34

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 301 degree

4

km/h

Humidity icon

42%

11:00

32

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 277 degree

6

km/h

Humidity icon

37%

12:00

32

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 264 degree

11

km/h

Humidity icon

37%

13:00

32

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 262 degree

13

km/h

Humidity icon

36%

14:00

30

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 258 degree

15

km/h

Humidity icon

35%

15:00

30

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 252 degree

16

km/h

Humidity icon

37%

16:00

30

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 245 degree

15

km/h

Humidity icon

39%

17:00

26

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 231 degree

14

km/h

Humidity icon

42%

18:00

26

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 216 degree

10

km/h

Humidity icon

43%

19:00

26

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 211 degree

7

km/h

Humidity icon

49%

20:00

24

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 230 degree

5

km/h

Humidity icon

52%

21:00

24

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 205 degree

2

km/h

Humidity icon

57%

22:00

24

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 188 degree

0

km/h

Humidity icon

59%

23:00

24

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 339 degree

1

km/h

Humidity icon

60%

Tue

00:00

24

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 55 degree

2

km/h

Humidity icon

62%

01:00

24

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 66 degree

3

km/h

Humidity icon

65%

02:00

26

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 71 degree

4

km/h

Humidity icon

68%

03:00

26

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 70 degree

4

km/h

Humidity icon

66%

04:00

26

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 58 degree

4

km/h

Humidity icon

66%

05:00

52

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 45 degree

4

km/h

Humidity icon

64%

06:00

52

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 45 degree

5

km/h

Humidity icon

65%

07:00

52

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 47 degree

6

km/h

Humidity icon

65%

08:00

53

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 50 degree

8

km/h

Humidity icon

58%

09:00

53

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 43 degree

4

km/h

Humidity icon

53%

10:00

53

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 188 degree

5

km/h

Humidity icon

40%

11:00

53

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 190 degree

10

km/h

Humidity icon

53%

12:00

53

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 192 degree

12

km/h

Humidity icon

61%

13:00

53

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 191 degree

13

km/h

Humidity icon

53%

14:00

53

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 193 degree

15

km/h

Humidity icon

51%

15:00

53

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 194 degree

15

km/h

Humidity icon

51%

16:00

53

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 199 degree

14

km/h

Humidity icon

55%

17:00

57

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 197 degree

13

km/h

Humidity icon

55%

18:00

57

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 196 degree

12

km/h

Humidity icon

57%

Daily forecast

|

Saint-Louis air quality index (AQI⁺) forecast

Today

59

Weather icon

23°

13°

IQAir AirVisual Air Quality Map Wind rotating 180 degree

12

km/h

Humidity icon

58%

Sun

55

Weather icon

26°

14°

IQAir AirVisual Air Quality Map Wind rotating 315 degree

22

km/h

Humidity icon

46%

Mon

30

Weather icon

24°

15°

IQAir AirVisual Air Quality Map Wind rotating 270 degree

16

km/h

Humidity icon

47%

Air pollutants

What is the current air quality in Saint-Louis?

IQAir exclamation icon

PM2.5 concentration is currently 2.6 times the World Health Organization annual PM2.5 guideline value.

Health recommendations

common.healthRecommendationComp.icons.exerciseAlt

Sensitive groups should reduce outdoor exercise

common.healthRecommendationComp.icons.windowAlt

Close your windows to avoid dirty outdoor air

Get a monitor
common.healthRecommendationComp.icons.maskAlt

Sensitive groups should wear a mask outdoors

Get a mask
common.healthRecommendationComp.icons.airPurifierAlt

Sensitive groups should run an air purifier

Get an air purifier

Protect yourself from air pollution in Saint-Louis

SHOP IQAIR PRODUCTS

Monitor the air you breathe

Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.

AirVisual Series

Medical grade air purifiers

Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.

HealthPro Series

Powerful, stylish air purifiers

Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.

Atem Series

Pollen

What is the pollen count in Saint-Louis today?

Index

Pollen global icon

Low

Pollen tree icon

Tree

None

0%
Pollen grass icon

Grass

Low

25%
Pollen weed icon

Weed

None

0%
Pollen forecast in Saint-Louis

Health recommendations

common.healthRecommendationComp.icons.exerciseAlt

Sensitive groups should reduce outdoor exercise

common.healthRecommendationComp.icons.windowAlt

Close your windows to avoid dirty outdoor air

Get a monitor
common.healthRecommendationComp.icons.maskAlt

Sensitive groups should wear a mask outdoors

Get a mask
common.healthRecommendationComp.icons.airPurifierAlt

Sensitive groups should run an air purifier

Get an air purifier

Pollen

What is the pollen count in Saint-Louis today?

Index

Pollen global icon

Low

Pollen tree icon

Tree

None

0%
Pollen grass icon

Grass

Low

25%
Pollen weed icon

Weed

None

0%
Pollen forecast in Saint-Louis

Protect yourself from air pollution in Saint-Louis

SHOP IQAIR PRODUCTS

Monitor the air you breathe

Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.

AirVisual Series

Medical grade air purifiers

Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.

HealthPro Series

Powerful, stylish air purifiers

Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.

Atem Series

Most polluted locations near Saint-Louis

Worldwide AQI⁺ rankingArrow icon

City ranking

Real-time France AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of France

Cannes, Provence-Alpes-Cote d'Azur

61

2
The national flag of France

Mamoudzou, Mayotte

60

3
The national flag of France

Nice, Provence-Alpes-Cote d'Azur

58

4
The national flag of France

Paris, Ile-de-France

50

5
The national flag of France

Reims, Grand Est

50

6
The national flag of France

Avignon, Provence-Alpes-Cote d'Azur

46

7
The national flag of France

La Rochelle, Nouvelle-Aquitaine

44

8
The national flag of France

Marseille, Provence-Alpes-Cote d'Azur

44

9
The national flag of France

Chambéry, Auvergne-Rhone-Alpes

42

10
The national flag of France

Passy, Auvergne-Rhône-Alpes

41

History

Historic air quality graph for Saint-Louis

58 AQI⁺ US
Moderate
17:00–18:00 Apr 18 Local time
AQI⁺ US

History

Historic air quality graph for Saint-Louis

58 AQI⁺ US
Moderate
17:00–18:00 Apr 18 Local time
AQI⁺ US

Most polluted locations near Saint-Louis

Worldwide AQI⁺ rankingArrow icon

City ranking

Real-time France AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of France

Cannes, Provence-Alpes-Cote d'Azur

61

2
The national flag of France

Mamoudzou, Mayotte

60

3
The national flag of France

Nice, Provence-Alpes-Cote d'Azur

58

4
The national flag of France

Paris, Ile-de-France

50

5
The national flag of France

Reims, Grand Est

50

6
The national flag of France

Avignon, Provence-Alpes-Cote d'Azur

46

7
The national flag of France

La Rochelle, Nouvelle-Aquitaine

44

8
The national flag of France

Marseille, Provence-Alpes-Cote d'Azur

44

9
The national flag of France

Chambéry, Auvergne-Rhone-Alpes

42

10
The national flag of France

Passy, Auvergne-Rhône-Alpes

41

Be the first to measure and contribute air quality data to your community

Where is the cleanest air quality in Saint-Louis?

No locations are available.