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
WeatherClear sky
Temperature71.6°F
Humidity95%
Wind0 mp/h
Pressure30.1 Hg

live aqi city ranking

Real-time USA city ranking

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

405

2The national flag of International Klamath, Oregon

171

3The national flag of International Nampa, Idaho

168

4The national flag of International La Pine, Oregon

164

5The national flag of International Three Rivers, Oregon

158

6The national flag of International Manson, Washington

153

7The national flag of International Sisters, Oregon

145

8The national flag of International McCall, Idaho

132

9The national flag of International Rapid City, South Dakota

123

10The national flag of International Wellington, Colorado

119

(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

68

2 Windswept Drive

56

3 Forest Park

55

4 Buchanan Street

54

5 BLAIR STREET

53

6 BROADWAY (South)

51

7 Branch Street

47

8 Ladue

45

9 Muirfield Lane

6

(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
10.6µg/m³
PM10
22µg/m³
O3
28µg/m³
NO2
22.2µg/m³
SO2
1.3µg/m³
CO
458µg/m³
!

PM2.5

x2.1

PM2.5 concentration in Saint Louis is currently 2.1 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
Sunday, Jul 21

Moderate 51 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 58 AQI US

Human face indicating AQI level
Weather icon
82.4° 64.4°
Wind rotating 181 degree 4.5 mp/h
Tuesday, Jul 23

Moderate 54 AQI US

Human face indicating AQI level
Weather icon
86° 68°
Wind rotating 98 degree 4.5 mp/h
Today

Moderate 54 AQI US

Human face indicating AQI level
Weather icon 80%
86° 68°
Wind rotating 98 degree 4.5 mp/h
Thursday, Jul 25

Moderate 75 AQI US

Human face indicating AQI level
Weather icon 90%
86° 68°
Wind rotating 73 degree 6.7 mp/h
Friday, Jul 26

Moderate 69 AQI US

Human face indicating AQI level
Weather icon 60%
82.4° 66.2°
Wind rotating 112 degree 6.7 mp/h
Saturday, Jul 27

Moderate 68 AQI US

Human face indicating AQI level
Weather icon 100%
80.6° 69.8°
Wind rotating 177 degree 6.7 mp/h
Sunday, Jul 28

Moderate 67 AQI US

Human face indicating AQI level
Weather icon 70%
86° 69.8°
Wind rotating 196 degree 8.9 mp/h
Monday, Jul 29

Moderate 78 AQI US

Human face indicating AQI level
Weather icon
95° 71.6°
Wind rotating 232 degree 13.4 mp/h
Tuesday, Jul 30

Moderate 68 AQI US

Human face indicating AQI level
Weather icon 20%
100.4° 75.2°
Wind rotating 260 degree 13.4 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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