Air quality in Saint Louis

Air quality index (AQI) and PM2.5 air pollution in Saint Louis

Last update at (local time)

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Pollen

What is the pollen count in Saint Louis today?

IndexNone
Tree pollenNone
Grass pollenNone
Weed pollenNone
Source: tomorrow.io
See pollen forecast

Weather

What is the current weather in Saint Louis?

Weather icon
WeatherBroken clouds
Temperature75.2°F
Humidity88%
Wind2 mp/h
Pressure30 Hg

live aqi city ranking

Real-time USA city ranking

#cityUS AQI
1The national flag of International Burns, Oregon

188

2The national flag of International Ketchum, Idaho

109

3The national flag of International Sun Valley, Idaho

96

4The national flag of International Missoula, Montana

82

5The national flag of International Chelan, Washington

78

6The national flag of International Mesa, Arizona

76

7The national flag of International Helena, Montana

74

8The national flag of International Twisp, Washington

73

9The national flag of International Medina, Washington

71

10The national flag of International Dillon, Montana

69

(local time)

SEE WORLD AQI RANKING

live Saint Louis aqi ranking

Real-time Saint Louis air quality ranking

#stationUS AQI
1 Branch Street

52

2 Blair Street at Branch Street

44

3 Forest Park

31

4 Windswept Drive

28

5 BLAIR STREET

24

6 Ladue

21

7 BROADWAY (South)

17

8 Buchanan Street

10

9 Muirfield Lane

5

(local time)

SEE WORLD AQI RANKING

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US AQI

24

live AQI index
Good

Human face indicating AQI level

Overview

What is the current air quality in Saint Louis?

Air pollution levelAir quality indexMain pollutant
Good 24 US AQIPM2.5
PollutantsConcentration
PM2.5
4.4µg/m³
PM10
26µg/m³
O3
44µg/m³
NO2
8µg/m³
SO2
1.3µg/m³
CO
229µg/m³

PM2.5 concentration in Saint Louis air currently meets the WHO annual air quality guideline value

Health Recommendations

What is the current air quality in Saint Louis?

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Forecast

Saint Louis air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Sunday, Jul 14

Moderate 54 AQI US

Human face indicating AQI level
Weather icon
95° 71.6°
Wind rotating 190 degree 8.9 mp/h
Monday, Jul 15

Good 48 AQI US

Human face indicating AQI level
Weather icon
82.4° 69.8°
Wind rotating 358 degree 8.9 mp/h
Tuesday, Jul 16

Good 23 AQI US

Human face indicating AQI level
Weather icon
84.2° 69.8°
Wind rotating 359 degree 11.2 mp/h
Today

Good 24 AQI US

Human face indicating AQI level
Weather icon 70%
84.2° 69.8°
Wind rotating 359 degree 11.2 mp/h
Thursday, Jul 18

Moderate 66 AQI US

Human face indicating AQI level
Weather icon
77° 60.8°
Wind rotating 43 degree 11.2 mp/h
Friday, Jul 19

Moderate 64 AQI US

Human face indicating AQI level
Weather icon
77° 57.2°
Wind rotating 84 degree 6.7 mp/h
Saturday, Jul 20

Moderate 65 AQI US

Human face indicating AQI level
Weather icon
80.6° 59°
Wind rotating 82 degree 4.5 mp/h
Sunday, Jul 21

Moderate 62 AQI US

Human face indicating AQI level
Weather icon
80.6° 64.4°
Wind rotating 85 degree 6.7 mp/h
Monday, Jul 22

Moderate 61 AQI US

Human face indicating AQI level
Weather icon 30%
84.2° 64.4°
Wind rotating 85 degree 8.9 mp/h
Tuesday, Jul 23

Moderate 73 AQI US

Human face indicating AQI level
Weather icon 80%
82.4° 66.2°
Wind rotating 112 degree 6.7 mp/h

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How to best protect from air pollution?

Reduce your air pollution exposure in Saint Louis

Saint Louis air quality data attribution

5Contributors

Data validated and calibrated by IQAirData validated and calibrated by IQAir
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