Air Quality in Webster Groves, United States

Drizzle
19.7°C · 96.0% humidity
19.7°
Feels 19.7°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
6 stations

Nearby Monitoring Stations

AQI Forecast
54 8am
54
54
30 11am
34
34
34 2pm
34
34
34 5pm
34
34
54 8pm
54
54
54 11pm
54
54
54 2am
54
54
54 5am
54
54
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.

96.0%
Humidity
44.1 km/h
Wind NE
1018.9 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
30
7.17 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
PM2.57.17 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (6 stations within 25 km)
7.17
Median
8.07
Average
5.5
Low
11.0
High
PM2.5 µg/m³ · Model: 8.2 · Bias: +1.0

What is the 7-day forecast for Webster Groves?

09-05
27.6° 19.7°
3.31 mm
09-06
38.0° 18.5°
3.38 mm
09-07
29.5° 22.9°
0.06 mm
09-08
25.8° 21.0°
17.69 mm
09-09
25.9° 17.1°
4.0 mm
09-10
31.5° 19.1°
0.69 mm
09-11
38.6° 20.4°
0.13 mm
Both models agree Avg diff: 6.2°C

Where are air quality stations near Webster Groves?

39
Ladue, Missouri, USA
6.4 km PM2.5: 9.4 µg/m³
27
Forest Park, Missouri, USA
7.9 km PM2.5: 6.5 µg/m³
35
Blair Street, Missouri, USA
15.5 km PM2.5: 8.4 µg/m³
68
Arnold West, Missouri, USA
16.4 km PM2.5: 20.2 µg/m³
46
Arnold West, Missouri, USA
16.4 km PM2.5: 11.0 µg/m³
49
Arnold West, Missouri, USA
16.4 km PM2.5: 11.8 µg/m³
72
Arnold West, Missouri, USA
16.4 km PM2.5: 22.1 µg/m³
27
Arnold West, Missouri, USA
16.4 km PM2.5: 6.5 µg/m³
52
East St. Louis, Illinois, USA
17.2 km PM2.5: 12.6 µg/m³

What cities are near Webster Groves?

31 Kirkwood 32 Affton 29 Clayton 34 Concord 28 University City 32 Lemay 30 Creve Coeur 34 Mehlville 30 Overland 31 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 2026-09-05T16:33 UTC.