Air Quality in Saint Peters, United States

Rain
19.1°C · 95.9% humidity
19.1°
Feels 19.1°
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model

Nearby Monitoring Stations

AQI Forecast
54 8am
54
34
37 11am
34
27
27 2pm
27
27
27 5pm
27
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 · 5 stn

Saint Peters's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

95.9%
Humidity
52.3 km/h
Wind NE
1018.9 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

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

What is the weather forecast for Saint Peters?

Temperature & Precipitation

PM2.5 Trend

45h · 5 stations
PM2.58.9 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Both models agree Avg diff: 7.1°C

Where are air quality stations near Saint Peters?

39
Ladue, Missouri, USA
29.2 km PM2.5: 9.4 µg/m³

What cities are near Saint Peters?

38 O'Fallon 28 Saint Charles 30 Chesterfield 29 Maryland Heights 38 Wentzville 30 Hazelwood 30 Creve Coeur 32 Ballwin 39 Wildwood 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 2026-09-05T16:41 UTC.