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
Temperature73.4°F
Humidity87%
Wind0 mp/h
Pressure30.1 Hg

live aqi city ranking

Real-time USA city ranking

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

186

2The national flag of International Nampa, Idaho

162

3The national flag of International Central Point, Oregon

160

4The national flag of International Medford, Oregon

159

5The national flag of International Jacksonville, Oregon

158

6The national flag of International McCall, Idaho

156

7The national flag of International Phoenix, Oregon

153

8The national flag of International Eagle Point, Oregon

146

9The national flag of International Talent, Oregon

144

10The national flag of International La Pine, Oregon

139

(local time)

SEE WORLD AQI RANKING

live Saint Louis aqi ranking

Real-time Saint Louis air quality ranking

#stationUS AQI
1 Blair Street at Branch Street

66

2 Branch Street

61

3 Forest Park

59

4 BLAIR STREET

55

5 Buchanan Street

54

6 Windswept Drive

54

7 Ladue

51

8 BROADWAY (South)

48

9 Muirfield Lane

13

(local time)

SEE WORLD AQI RANKING

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US AQI

54

live AQI index
Moderate

Human face indicating AQI level

Overview

What is the current air quality in Saint Louis?

Air pollution levelAir quality indexMain pollutant
Moderate 54 US AQIPM2.5
PollutantsConcentration
PM2.5
11µg/m³
PM10
50µg/m³
O3
70µg/m³
NO2
25.6µg/m³
SO2
1.6µg/m³
CO
343.5µg/m³
!

PM2.5

x2.2

PM2.5 concentration in Saint Louis is currently 2.2 times the WHO annual air quality guideline value

Health Recommendations

What is the current air quality in Saint Louis?

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Sensitive groups should reduce outdoor exercise
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Close your windows to avoid dirty outdoor air
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Sensitive groups should wear a mask outdoors
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Sensitive groups should run an air purifier
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Forecast

Saint Louis air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Saturday, Jul 20

Good 43 AQI US

Human face indicating AQI level
Weather icon
78.8° 64.4°
Wind rotating 96 degree 6.7 mp/h
Sunday, Jul 21

Good 50 AQI US

Human face indicating AQI level
Weather icon
82.4° 64.4°
Wind rotating 66 degree 4.5 mp/h
Monday, Jul 22

Moderate 57 AQI US

Human face indicating AQI level
Weather icon
82.4° 64.4°
Wind rotating 181 degree 4.5 mp/h
Today

Moderate 54 AQI US

Human face indicating AQI level
Weather icon 30%
86° 66.2°
Wind rotating 167 degree 4.5 mp/h
Wednesday, Jul 24

Moderate 76 AQI US

Human face indicating AQI level
Weather icon 80%
84.2° 68°
Wind rotating 114 degree 6.7 mp/h
Thursday, Jul 25

Moderate 67 AQI US

Human face indicating AQI level
Weather icon
80.6° 66.2°
Wind rotating 102 degree 6.7 mp/h
Friday, Jul 26

Moderate 67 AQI US

Human face indicating AQI level
Weather icon 100%
82.4° 68°
Wind rotating 168 degree 8.9 mp/h
Saturday, Jul 27

Moderate 66 AQI US

Human face indicating AQI level
Weather icon 80%
87.8° 69.8°
Wind rotating 169 degree 8.9 mp/h
Sunday, Jul 28

Moderate 80 AQI US

Human face indicating AQI level
Weather icon
93.2° 71.6°
Wind rotating 215 degree 8.9 mp/h
Monday, Jul 29

Moderate 68 AQI US

Human face indicating AQI level
Weather icon 30%
98.6° 75.2°
Wind rotating 252 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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