Air Quality in Saint-Louis, France
Rain
11.0°C · 97.7% humidity
11.0°
Feels 11.0°
35
Good
Air quality is satisfactory. Enjoy outdoor activities.
6 stations
Nearby Monitoring Stations
Saint-Louis's air quality — share it
AQI Forecast
Calibrated
9
11pm
10
10
35
2am
27
23
19
5am
16
14
12
8am
11
11
10
11am
10
10
9
2pm
9
10
10
5pm
10
10
10
8pm
10
10
Station readings
9
13
16
CAMS model
adj -15
25
25
25
25
24
25
25
24
24
24
24
24
24
24
24
24
24
25
25
25
25
25
25
25
Air Quality Index Trend
31h · 1 stnSaint-Louis's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level.
97.7%
Humidity
31.5 km/h
Wind SW
1020.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
8.54 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Saint-Louis?
Temperature & Precipitation
PM2.5 Trend
31h · 1 stationPM2.58.54 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (6 stations within 25 km)
8.54
Median
6.42
Average
3.28
Low
9.6
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -2.6
What is the 7-day forecast for Saint-Louis?
06-09
27.3° 11.0°
10.37 mm
06-10
23.5° 12.7°
0.06 mm
06-11
24.3° 14.0°
5.56 mm
06-12
24.3° 11.9°
1.44 mm
06-13
26.3° 9.7°
8.44 mm
06-14
25.7° 11.9°
0.13 mm
06-15
27.3° 13.2°
Both models agree
Avg diff: 3.0°C
Where are air quality stations near Saint-Louis?
94
C.C. 3 Frontières, Alsace, France
30
Weil am Rhein, Germany
16
switzerland-zwingen-reckholderstrasse
–
Hauptstraße Schwörstadt
22
Schwarzwald-Süd, Germany
14
Schwarzwald-Süd, Germany
What cities are near Saint-Louis?
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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 2026-06-09T00:19 UTC.