Air Quality in Webster Groves, United States

Clear
31.5°C · 46.5% humidity
31.5°
Feels 34.6°
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast
25 7am
25
25
37 10am
34
31
29 1pm
28
27
27 4pm
26
26
26 7pm
34
34
34 10pm
34
34
34 1am
27
27
27 4am
25
25
AD 728×90

Air Quality Index Trend

45h · 6 stn

Webster Groves's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Webster Groves is 1.8× the WHO annual guideline of 5 µg/m³.

46.5%
Humidity
34.3 km/h
Wind NNW
1020.0 hPa
Pressure
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
37
8.87 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Webster Groves?

Temperature & Precipitation

PM2.5 Trend

45h · 6 stations
PM2.58.87 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX10.9
Extreme
AD 300×250
Station readings (5 stations within 25 km)
8.87
Median
9.78
Average
8.2
Low
15.9
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -2.6

What is the 7-day forecast for Webster Groves?

05-29
31.5° 9.3°
1.81 mm
05-30
30.5° 19.3°
2.19 mm
05-31
32.6° 13.8°
06-01
31.7° 18.7°
06-02
27.5° 16.6°
06-03
30.8° 25.0°
0.25 mm
06-04
28.8° 20.6°
3.44 mm
Both models agree Avg diff: 4.4°C

Where are air quality stations near Webster Groves?

24
Forest Park, Missouri, USA
7.9 km PM2.5: 5.8 µg/m³
15
Arnold West, Missouri, USA
16.4 km PM2.5: 3.6 µg/m³
38
Arnold West, Missouri, USA
16.4 km PM2.5: 9.1 µg/m³
30
East St. Louis, Illinois, USA
17.2 km PM2.5: 7.2 µg/m³

What cities are near Webster Groves?

37 Kirkwood 38 Affton 36 Clayton 37 Concord 36 University City 39 Lemay 37 Creve Coeur 38 Mehlville 38 Overland 35 Manchester
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-29T15:26 UTC.