Air Quality in Saint-Louis, France
Rain
12.3°C · 89.5% humidity
12.3°
Feels 12.3°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations
Nearby Monitoring Stations
AQI Forecast
Calibrated
15
2am
13
12
22
5am
18
17
15
8am
14
14
13
11am
13
13
12
2pm
12
13
13
5pm
13
13
13
8pm
13
13
15
11pm
15
15
Station readings
15
13
12
CAMS model
adj -12
25
24
25
25
24
24
24
24
24
24
24
24
24
24
25
25
25
25
25
25
25
27
27
27
Air Quality Index Trend
34h · 2 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.
89.5%
Humidity
25.1 km/h
Wind SSW
1022.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
5.32 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Saint-Louis?
Temperature & Precipitation
PM2.5 Trend
34h · 2 stationsPM2.55.32 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (4 stations within 25 km)
5.32
Median
4.27
Average
2.27
Low
5.5
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +0.6
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?
45
C.C. 3 Frontières, Alsace, France
30
Weil am Rhein, Germany
17
switzerland-zwingen-reckholderstrasse
3
Hauptstraße Schwörstadt
–
Schwarzwald-Süd, Germany
22
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 2026-06-09T03:04 UTC.